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/imx8mm-cl-iot-gate.h b/include/configs/imx8mm-cl-iot-gate.h
index 8046a13..917d567 100644
--- a/include/configs/imx8mm-cl-iot-gate.h
+++ b/include/configs/imx8mm-cl-iot-gate.h
@@ -133,8 +133,8 @@
 
 /* USDHC */
 
-#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
 
 #define CONFIG_FEC_MXC_PHYADDR		0