Merge "Migrate profcollectd's libflags bindings from bindgen to cxx." am: 20100be3f3 am: a1ffeb0566

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1774791

Change-Id: Ibc6415341dca09e6991408f86e8ff72d77a257e4