Add RIL_UNSOL_MODEM_RESTART message

RIL_UNSOL_MODEM_RESTART will be sent by vendor RILs when it detects
a modem restart along with the reason for restart which could be a
crash signature if the modem restarted due to a crash or a some
other string such as a user-initiated restart or AT command
initiated restart.

Test: Manual
Merged-In: I21310be011ec9df395cc1fc95c6c96dbfba86792
Change-Id: I21310be011ec9df395cc1fc95c6c96dbfba86792
3 files changed
tree: 99d0e2d46686cab8a926f51f261ddb60e79e81bc
  1. include/
  2. libril/
  3. librilutils/
  4. reference-ril/
  5. rild/
  6. CleanSpec.mk