Merge "[NFCI] Change llvm-ar '-format' to be '--format'." am: f73658bd am:...

Merge "[NFCI] Change llvm-ar '-format' to be '--format'." am: f73658bd am: 02dc83d6 am: 9e26721c

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1959508

Change-Id: Id6b5b21e3258ed4861896b268f2d33b126a540de