Merge change 6059 into donut

* changes:
  Also look in vendor/*/build for vendorsetup.sh
tree: e384a0d8edb311f34410428869017b17f4ba9a46
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh