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/imx8mp_rsb3720.h b/include/configs/imx8mp_rsb3720.h
index 5caabf2..5be4609 100644
--- a/include/configs/imx8mp_rsb3720.h
+++ b/include/configs/imx8mp_rsb3720.h
@@ -150,8 +150,8 @@
 
 #define CONFIG_MXC_UART_BASE		UART3_BASE_ADDR
 
-#define CONFIG_SYS_FSL_USDHC_NUM	2
-#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CFG_SYS_FSL_USDHC_NUM	2
+#define CFG_SYS_FSL_ESDHC_ADDR	0
 
 #ifdef CONFIG_FSL_FSPI
 #define FSL_FSPI_FLASH_SIZE		SZ_32M