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/imx8mq_phanbell.h b/include/configs/imx8mq_phanbell.h
index 6d0c453..bfde15e 100644
--- a/include/configs/imx8mq_phanbell.h
+++ b/include/configs/imx8mq_phanbell.h
@@ -92,7 +92,7 @@
 #define PHYS_SDRAM                      0x40000000
 #define PHYS_SDRAM_SIZE			0x40000000 /* 1GB DDR */
 
-#define CONFIG_MXC_UART_BASE		UART_BASE_ADDR(1)
+#define CFG_MXC_UART_BASE		UART_BASE_ADDR(1)
 
 #define CFG_SYS_FSL_USDHC_NUM	2
 #define CFG_SYS_FSL_ESDHC_ADDR       0