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/board/bosch/acc/acc.c b/board/bosch/acc/acc.c
index dbc03c9..770ca8b 100644
--- a/board/bosch/acc/acc.c
+++ b/board/bosch/acc/acc.c
@@ -562,7 +562,7 @@
 	 * mmc0 USDHC2
 	 * mmc1 USDHC4
 	 */
-	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+	for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) {
 		switch (i) {
 		case 0:
 			SETUP_IOMUX_PADS(usdhc2_pads);