[automerger skipped] Merge "Revert "Revert "Load env variables before...

[automerger skipped] Merge "Revert "Revert "Load env variables before c.config()""" into rvc-dev am: 9ecad747 am: dd28ec51 am: ea62b3d7 -s ours

am skip reason: Merged-In I416e8da75f84aa2b53995f525cf50501488dc972 with SHA-1 51c40913 is already in history. Merged-In was found from reverted change.

Reverted change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15741350

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15778291

Change-Id: Ifca64238acb4d105adb4c98e7f02dde9d17633da