am f4311129: Add interface to determine whether the IMS service is available

* commit 'f4311129e3508963811d77715f1486ff54964341':
  Add interface to determine whether the IMS service is available
tree: 5cc078492db856b210180a02cd786c6744676faf
  1. src/
  2. Android.mk
  3. CleanSpec.mk
  4. README.txt