Merge "cc: Make cc_genrule defaultable" into main am: 36187c37

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3131758



Change-Id: I7483f90d69cec43463b1852e57b59be725b17be1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>