Merge change 3248 into donut

* changes:
  clean up old libcamera and libqcamera
tree: fc37de8674cf07408e2c6bdc256a5ee61e5f5d45
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh