gn2bp: add `get_cmd` to BaseActionSanitizer am: d5515ca062

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2325456

Change-Id: Id52c137a464da8195248291125759b2cdae5eee9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>