When an override_apex named Foo overrides an apex module named Bar, the
Make modules from Foo have Foo as their suffix. Previously the suffix
was Bar for both of the overriding and the overridden APEXes, causing
name conflicts in the Make side.
Bug: 144338929
Test: apex_test.go
Change-Id: I1396910ab294ba5f5e0585af6d37f1eab9460250
For platform APEXes, file_contexts should point a file under
/system/sepolicy.
Bug: 144732805
Test: m
Change-Id: Ib2d5db715bbebc80a6178d1c42e387b268cc4a0d
apex.go is too big. Separate the build rule and android.mk generation
logic into builder.go and androidmk.go, respectively. prebuilt_apex is
moved to prebuilt.go as well.
No refactoring has been made other than the splitting.
Test: m
Change-Id: I839ab0a1ba2b70ce82d98ac1fa8e3534808b5fd3
