usb: Make compiling gadget support optional
There is no need to compile and include this code if it is not used.
CONFIG_USB_GADGET can be used for the purpose.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
diff --git a/configs/omap3_zoom1_defconfig b/configs/omap3_zoom1_defconfig
index 325c002..489e6a8 100644
--- a/configs/omap3_zoom1_defconfig
+++ b/configs/omap3_zoom1_defconfig
@@ -35,5 +35,6 @@
CONFIG_USB_MUSB_UDC=y
CONFIG_USB_OMAP3=y
CONFIG_TWL4030_USB=y
+CONFIG_USB_GADGET=y
CONFIG_FAT_WRITE=y
CONFIG_OF_LIBFDT=y