RIL_SignalStrength_v10 not support gw.timingAdvance. But default 0 will
be taken as valid value. Set to INT_MAX as invalid value.
Bug: 123096279
Test: Build pass. Correct value for GW timingAdvance in radio log.
01-22 16:22:41.150 1779 1910 V RILJ : [UNSL]< UNSOL_SIGNAL_STRENGTH
SignalStrength:{ mGsm=CellSignalStrengthGsm: rssi=2147483647 ber=99 mTa=2147483647
[haggertk: Upstream commit updated to patch both
convertRilSignalStrengthToHalV8 and convertRilSignalStrengthToHalV10,
as the upstream libril only has a single convertRilSignalStrengthToHal]
Change-Id: I37cc2c246d045a07ffad863fb0cc852d8184c3ca
1878e1f3b3