Merge "Include what you use: <cutils/bitops.h> for popcount" am: a4d629d311 am: e9458106aa am: 7997351bc4 am: 13738ffa12 am: 0dc1dcfd86

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1354145

Change-Id: I6e996992ffa39615466fe8f59351058d51f19164