Set usesNonSdkApi in manifest when Platform_apis=true

The Platform_apis field in CompilerDeviceProperties currently has no
effect. Unify the behaviour with make and run manifest_fixer.py to
encode the information in the manifest. This is used to exempt
bundled apps and platform tests from hidden API access checks without
having a fixed whitelist of packages.

Bug: 113315999
Bug: 124671117
Test: m UbSystemUiJankTests && \
      aapt d xmltree \
      target/product/taimen/data/app/UbSystemUiJankTests/UbSystemUiJankTests.apk \
      AndroidManifest.xml | grep usesNonSdkApi
Change-Id: I20c392d91ee6275ef8139fbeb5b9700385abbc80