ANDROID: GKI: enabled CONFIG_USB_CONFIGFS_NCM=y

It's needed by devices, so add it to the gki defconfig files

Bug: 163679730
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia9c77c07e7e4c590b2f82355a9db24e9bd8ab1b2