libril: build with GCC for M7 for now (REVERT ME)
ril: fix RIL_onUnsolicitedResponse

The header is mismatched. data shouldn't be const void*.

Fixes:
hardware/ril/libril/ril.cpp:3301:6: error: conflicting types for 'RIL_onUnsolicitedResponse'
void RIL_onUnsolicitedResponse(int unsolResponse, void *data,
     ^
     hardware/ril/include/telephony/ril.h:4134:6: note: previous declaration is here
     void RIL_onUnsolicitedResponse(int unsolResponse, const void *data,
          ^

From https://github.com/codefireXperiment/hardware_ril/commit/a71cd79fc6fa3bc015569488312a13fd707dfa21

Is all this inlining madness necessary CM?