Revert "Move hals.conf into prebuilt_etc"

This reverts commit 2f973f78947e0ebab9f7e6801f7c0f20fc95b827.

Bug: 157223866
Reason for revert: Broken build on git_qt-qpr1-dev-plus-aosp on build_test

Change-Id: I9219c39ec033b641655c30f6684e0806ccece02d
2 files changed