Merge "Use result.Config.PrebuiltOS() to get prebuiltHost in test_spec_test"...

Merge "Use result.Config.PrebuiltOS() to get prebuiltHost in test_spec_test" into main am: 9be9a126 am: baed9d5a

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2841420



Change-Id: I149dc7c048563bc01fff84ad9e9a6bebb4cedaac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>