Merge "Convert envsetup.sh shell functions to scripts." into main am: 4deefa4c

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3092993



Change-Id: Iee36c388c33c4462c195484c71a0941d42cdbcfd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>