am 97f1dafc: Merge "Remove makefile cruft."

* commit '97f1dafc0cd3de51127477b8a0650883c0e657e8':
  Remove makefile cruft.
tree: d295c8c362e5dd347e7e992becc30f2024da0807
  1. include/
  2. libril/
  3. librilutils/
  4. reference-ril/
  5. rild/
  6. CleanSpec.mk