usb: Add USB Soong namespace to product makefile.

 * If this product makefile is picked up the likelihood
   of wanting to use the included USB scripts is high.

Change-Id: I3c0bdc5fd99c68376ad1a548ed3f595550bc5973
1 file changed
tree: b076c8a44d98ff93e9d0bc1a2f08ba2a383eb7cb
  1. etc/
  2. hal/
  3. .gitupstream
  4. vendor_product.mk