am335x_evm: Fix CONS_INDEX numbering

Commit f6d1f6e4a58edae4776937647381a43fea5e83a5 broke selection of UARTs
other than UART0 for am335x_evm configurations by setting CONS_INDEX to
1 for all configurations.  Revert the CONS_INDEX changes.

Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
diff --git a/boards.cfg b/boards.cfg
index de3d75d..efecbc2 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -257,11 +257,11 @@
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_nor                       am335x_evm:SERIAL1,CONS_INDEX=1,NAND,NOR                                                                                          Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_norboot                   am335x_evm:SERIAL1,CONS_INDEX=1,NOR,NOR_BOOT                                                                                      Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_spiboot                   am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT                                                                                          Tom Rini <trini@ti.com>
-Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart1                     am335x_evm:SERIAL2,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
-Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart2                     am335x_evm:SERIAL3,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
-Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart3                     am335x_evm:SERIAL4,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
-Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart4                     am335x_evm:SERIAL5,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
-Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart5                     am335x_evm:SERIAL6,CONS_INDEX=1,NAND                                                                                              Tom Rini <trini@ti.com>
+Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart1                     am335x_evm:SERIAL2,CONS_INDEX=2,NAND                                                                                              Tom Rini <trini@ti.com>
+Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart2                     am335x_evm:SERIAL3,CONS_INDEX=3,NAND                                                                                              Tom Rini <trini@ti.com>
+Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart3                     am335x_evm:SERIAL4,CONS_INDEX=4,NAND                                                                                              Tom Rini <trini@ti.com>
+Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart4                     am335x_evm:SERIAL5,CONS_INDEX=5,NAND                                                                                              Tom Rini <trini@ti.com>
+Active  arm         armv7          am33xx      ti              am335x              am335x_evm_uart5                     am335x_evm:SERIAL6,CONS_INDEX=6,NAND                                                                                              Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am335x              am335x_evm_usbspl                    am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT                                                                           Tom Rini <trini@ti.com>
 Active  arm         armv7          am33xx      ti              am43xx              am43xx_evm                           am43xx_evm:SERIAL1,CONS_INDEX=1                                                                                                   -
 Active  arm         armv7          am33xx      ti              ti814x              ti814x_evm                           -                                                                                                                                 Matt Porter <matt.porter@linaro.org>