Added two new RIL commands support

Added RIL_REQUEST_SEND_DEVICE_STATE and
RIL_REQUEST_SET_UNSOLICITED_RESPONSE_FILTER RIL requests support.

Test: telephony sanity tests
bug: 32223897, 20125037, 28294587

Merged-In: I148a4322dfab2d8d84faf6505fb89dfc290411e3
Change-Id: I148a4322dfab2d8d84faf6505fb89dfc290411e3