ARM: davinci_all_defconfig: enable USB CDC NCM gadget

Enable USB CDC NCM gadget module in davinci_all_defconfig
to make it easier to use it on these devices.
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

arch/arm/configs/davinci_all_defconfig

@@ -186,6 +186,7 @@ CONFIG_USB_GADGET_DEBUG_FILES=y
 CONFIG_USB_GADGET_DEBUG_FS=y
 CONFIG_USB_ZERO=m
 CONFIG_USB_ETH=m
+CONFIG_USB_G_NCM=m
 CONFIG_USB_GADGETFS=m
 CONFIG_USB_MASS_STORAGE=m
 CONFIG_USB_G_SERIAL=m