Replace legacy-test with android.test.base in bp files

The legacy-test target is deprecated and will be replaced by
android.test.base. This replaces a few usages of the legacy-test target
in Android.bp files with android.test.base.

Bug: 30188076
Test: make checkbuild
Change-Id: I3575f638114fe2a3b703e67837496346bde24472
3 files changed