Merge "Break constant information out of product vars" am: 12f9cef5

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2532142



Change-Id: Ibe3dd9402d98c80808ed4a0563c6370e3cb48009
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>