Use a srcjar for aapt and aapt2 output

Dumping files in the *_intermediates/src causes incremental build
problems, because we don't know when to delete them if they are
no longer generated.  Switch to outputting a srcjar instead, and
pass it in to the turbine and javac compiles.

Bug: 73885582
Test: m checkbuild
Change-Id: Ibef28507522339d930c09426d0c98372eb864cb6