am aabb7029: Fix a typo in the GRALLOC_USAGE_HW_2D constant.

Merge commit 'aabb70292351f231bfd4daae8b73edb788eeba1a' into gingerbread-plus-aosp

* commit 'aabb70292351f231bfd4daae8b73edb788eeba1a':
  Fix a typo in the GRALLOC_USAGE_HW_2D constant.