usb: dwc3: add glue layer dependencies
usb: dwc3: add glue layer dependencies

Glue layers for the DWC3 driver only make sense on specific platforms.
Add dependencies so that they are not built where they aren't needed.

Cc: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>
Cc: WingMan Kwok <86e808f6e11658852886bccf2f22a57c90e60b3f@ti.com>
Signed-off-by: Jean Delvare <efca98801f3398ebd7eeff805a2c18e6c49e84d4@suse.de>
Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs