libmeminfo: Add clang-format preupload hook am: 59aaa579c8 am: 78d040e12a am: d12575d875

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmeminfo/+/1668526

Change-Id: I15d06547051eb647aa751dd248b4891e72c8af44