Enforce this requirement for delivery to aosp:
- "A release config shall exist in at most one of build/release and
vendor/google_shared/build/release".
Bug: 349843674
Bug: 370829778
Bug: 371026851
Test: manual, TH
(cherry picked from https://android-review.googlesource.com/q/commit:639423daacc146457f10cf3d060bc2932dc903eb)
Merged-In: Ie4bc8137f2bd10f3b90efcffe8d2c8e317dcc2fc
Change-Id: Ie4bc8137f2bd10f3b90efcffe8d2c8e317dcc2fc