arch: blackfin: udpate defconfig

choose musb by default for bf527 and bf548.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index 296de92..e716fdf 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -163,7 +163,10 @@
 # CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_OTG_BLACKLIST_HUB=y
 CONFIG_USB_MON=y
+CONFIG_USB_MUSB_HDRC=y
+CONFIG_USB_MUSB_BLACKFIN=y
 CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=m
 CONFIG_SDH_BFIN=y