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/board/ge/b1x5v2/spl.c b/board/ge/b1x5v2/spl.c
index 52c80f7..460d3be 100644
--- a/board/ge/b1x5v2/spl.c
+++ b/board/ge/b1x5v2/spl.c
@@ -565,9 +565,9 @@
 	timer_init();
 
 	/* iomux */
-	if (CONFIG_MXC_UART_BASE == UART2_BASE)
+	if (CFG_MXC_UART_BASE == UART2_BASE)
 		SETUP_IOMUX_PADS(uart2_pads);
-	else if (CONFIG_MXC_UART_BASE == UART3_BASE)
+	else if (CFG_MXC_UART_BASE == UART3_BASE)
 		SETUP_IOMUX_PADS(uart3_pads);
 
 	/* UART clocks enabled and gd valid - init serial console */