global: Migrate CONFIG_MXC_UART_BASE to CFG

Perform a simple rename of CONFIG_MXC_UART_BASE to CFG_MXC_UART_BASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/imx6-engicam.h b/include/configs/imx6-engicam.h
index 4208ba9..786b70f 100644
--- a/include/configs/imx6-engicam.h
+++ b/include/configs/imx6-engicam.h
@@ -116,9 +116,9 @@
 /* UART */
 #ifdef CONFIG_MXC_UART
 # ifdef CONFIG_MX6UL
-#  define CONFIG_MXC_UART_BASE		UART1_BASE
+#  define CFG_MXC_UART_BASE		UART1_BASE
 # else
-#  define CONFIG_MXC_UART_BASE		UART4_BASE
+#  define CFG_MXC_UART_BASE		UART4_BASE
 # endif
 #endif