Enable mainline checking for all GSI targets

There are some makefile inherit from aosp_$arch*.mk. This patch
change to only enable mainline checking on excat GSI targets,
such as aosp_$arch or aosp_$arch_(a|ab), and does not apply on
the child targets.

This patch also add some more whitelist items to gsi_common.mk

Bug: 123613261
Test: aosp_arm64-userdebug build pass
Test: remove some whitelist items and aosp_arm64-userdebug build fail
Test: sdk_phone_arm64-eng build pass
Test: gsi_arm64-userdebug build pass
Change-Id: I1772a55ab823a0312b9f215f0d2c3b0c727c8e4b