Print default val if all vals in axis match default val am: 921af323 am:...

Print default val if all vals in axis match default val am: 921af323 am: ac714702 am: bcd0d0fe am: 94d34286 am: f5841c82 am: 9f9af0d3

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2564550



Change-Id: I4f2457472d526cd44b35e0ec7791858e9a5d5dc1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>