Use phony ninja outputs to reduce file-size am: 2bae13b095 am: 80d4d41953 am: ff1beefbb9 am: 90b54a230c

Original change: https://android-review.googlesource.com/c/platform/build/blueprint/+/2449271

Change-Id: I96dd4a6b9a96d2720656dbe1ada4580d4c3f6328
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>