global: Move remaining CONFIG_SYS_NS16550_* to CFG_SYS_NS16550_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NS16550
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/ti_armv7_keystone2.h b/include/configs/ti_armv7_keystone2.h
index aaeea77..119b4c0 100644
--- a/include/configs/ti_armv7_keystone2.h
+++ b/include/configs/ti_armv7_keystone2.h
@@ -34,13 +34,13 @@
 #define KEYSTONE_SRAM_SCRATCH_SPACE_END		(TI_SRAM_SCRATCH_BOARD_EEPROM_END)
 
 /* UART Configuration */
-#define CONFIG_SYS_NS16550_COM1		KS2_UART0_BASE
-#define CONFIG_SYS_NS16550_COM2		KS2_UART1_BASE
+#define CFG_SYS_NS16550_COM1		KS2_UART0_BASE
+#define CFG_SYS_NS16550_COM2		KS2_UART1_BASE
 
 #ifndef CONFIG_SOC_K2G
-#define CONFIG_SYS_NS16550_CLK		ks_clk_get_rate(KS2_CLK1_6)
+#define CFG_SYS_NS16550_CLK		ks_clk_get_rate(KS2_CLK1_6)
 #else
-#define CONFIG_SYS_NS16550_CLK		ks_clk_get_rate(uart_pll_clk) / 2
+#define CFG_SYS_NS16550_CLK		ks_clk_get_rate(uart_pll_clk) / 2
 #endif
 
 /* SPI Configuration */