MH2 | Check that subhal index is in range

For each HalProxy method that takes in a sensorHandle, the code now
checks that the subhal index byte (first byte) of the handle is the
range of subhals in list before indexing into mSubHalList so that are
crash does not occur and returns Result::BAD_VALUE if that is the case.
Add unit tests to assert that error is returned. Also change the methods
that accept sensorHandles to int32_t type since that is the actual type
defined in the HAL spec.

Bug: 136511617
Test: Passing new unit tests.

Change-Id: I5489e999bc5eaef1a21698bdbc0a0341bc88194c