msm8960: set multiple ring prop

Change-Id: I4b1c95009ff135318d9bdb11699a88b243c92a08
Fix pthread_create error handling in ril.

Bug: https://code.google.com/p/android/issues/detail?id=64189
Change-Id: Ie6282dda582a574aaad5513c39f2d8d965f6dee3