ANDROID: GKI: enable usb storage drivers

This enables both CONFIG_USB_STORAGE=y and CONFIG_USB_UAS=y so that
systems that want to support usb storage devices will work with the GKI
base kernel image.

Bug: 161091250
Bug: 161190032
Cc: zhang sanshan <pete.zhang@nxp.com>
Cc: JaeHun Jung <jh0801.jung@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibda9ad03aea3f192c057fd3e479742d52d060f7b