Support APEXes on product partition

/product/apex is scanned after /system/apex. Note that for bootstraping,
only /system/apex is scanned.

Bug: 124470152
Test: add product_specific:true to com.android.resolv and check if the
device boots and the APEX is correctly mounted
Change-Id: Idef514accda3232fa5ecfdcc5581e52fc3ba6722
2 files changed
tree: 05c92750790ec54da0e3b08aa9c365520782424b
  1. apexd/
  2. apexer/
  3. proto/
  4. shim/
  5. tests/
  6. OWNERS
  7. PREUPLOAD.cfg