Android NDK r21e (7075529)
Merge cherrypicks of [1275206, 1275207, 1275375, 1275579, 1275580, 1275581, 1275582, 1275583, 1275584, 1275585, 1275586, 1275587, 1275588, 1275589, 1275398, 1275399, 1275223, 1275540, 1275541, 1275542, 1275435] into ndk-release-r21

Change-Id: I90cdb62fca000fad913ce13717107b0eeb859878
tree: 8bf356a97efd8f717a43fed6e9406c750d1d0248
  1. gdb-7.11/
  2. gdb-8.0.1/
  3. gdb-8.2/
  4. gdb-8.3/