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/pico-imx8mq.h b/include/configs/pico-imx8mq.h
index 1ee1edb..17af19d 100644
--- a/include/configs/pico-imx8mq.h
+++ b/include/configs/pico-imx8mq.h
@@ -73,7 +73,7 @@
 
 #define CONFIG_MXC_UART_BASE		UART_BASE_ADDR(1)
 
-#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
 
 #endif