Use NULL not 0 for pointers

Change-Id: Iab3f9abbdab617dc5a599e657ec46a0b0a002eef
3 files changed
tree: 6b4d02fc40687bbc8b463acd659e147d084f0883
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/