global: Migrate CONFIG_SYS_FSL* symbols to the CFG_SYS namespace

Migrate all of COFIG_SYS_FSL* to the CFG_SYS namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h
index c0d837d..d4f58b6 100644
--- a/include/configs/pico-imx6ul.h
+++ b/include/configs/pico-imx6ul.h
@@ -27,7 +27,7 @@
 #define CONFIG_MXC_UART_BASE		UART6_BASE_ADDR
 
 /* MMC Configs */
-#define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC1_BASE_ADDR
+#define CFG_SYS_FSL_ESDHC_ADDR	USDHC1_BASE_ADDR
 
 /* USB Configs */
 #define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)