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/drivers/net/pfe_eth/pfe_mdio.c b/drivers/net/pfe_eth/pfe_mdio.c
index ae5b6fc..ff48726 100644
--- a/drivers/net/pfe_eth/pfe_mdio.c
+++ b/drivers/net/pfe_eth/pfe_mdio.c
@@ -213,7 +213,7 @@
 	struct phy_device *phydev = NULL;
 	struct udevice *dev = priv->dev;
 	struct gemac_s *gem = priv->gem;
-	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
+	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CFG_SYS_FSL_SCFG_ADDR;
 
 	if (!gem->bus)
 		return -1;