Merge change 6059 into donut

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