Use target.linux for all linux kernel based targets

Now in Android.bp files, target.linux applies to all targets running a
linux kernel (android, linux_glibc, linux_bionic). So common
flags/sources/etc can be combined instead of copying them to each
target.

Test: m
Test: mmma external/boringssl
Change-Id: Ie98f6fe70a0c603d89d39f92246cb2e1d39108d6
2 files changed