Update freetype to 8bb09b0fe4d9747bcf452a777cabed7d7ef435e2

Integrated patches from freetype2 git repository, up to hashval
8bb09b0fe4d9747bcf452a777cabed7d7ef435e2, which is post-2.5.2.

Most recent commit message from freetype git:
  [truetype] Simplify logic of rendering modes.

Noteworthy patches included:
  [sfnt] Fix handling of embedded bitmap strikes.
  [truetype] Improve handling of buggy embedded bitmap strikes.
  Add FT_FACE_FLAG_COLOR and FT_HAS_COLOR.

Change-Id: I4a22d96c9443c7a587475ca0a9c684843e144b18
Update freetype to e1394d56752cac3bd68ab2358a8e1384ce7b9aaa

Integrated patches from freetype2 git repository, up to hashval
e1394d56752cac3bd68ab2358a8e1384ce7b9aaa, which is post-2.5.3.

Most recent commit message from freetype git:
  Minor documentation improvement.

Noteworthy patches included:
  Fix Savannah bug #41697, part 2.
  Fix Savannah bug #41697, part 1.

Bug: 16575323
Change-Id: I4f8f9375afd2540618b3ebf6152d77b743975dce
Merge remote-tracking branch 'm/kk44' into android-5.0.0_r2