Add null check for ims call during conference call updates

Add null check before accessing imscall object.
For conference call updates are forced by
using a null object for imscall
argument.
This enables UI update for conference calls

Bug: 17321414

Change-Id: I5667bf136af37e425040edc34dacad46de084ec4
1 file changed
tree: 6e5dfcc27af843fdc3c70bc624a6e730cf22fa75
  1. Android.mk
  2. CleanSpec.mk
  3. README.txt
  4. src/
  5. tests/
  6. tools/