HTCTegra3RIL: Add custom RIL for correct STK handling (1/2)

Change-Id: Ia12c85f43b5be0fe4e1cd3c3511490fd5cebe3af
Merge "HTCTegra3RIL: Add custom RIL for correct STK handling (1/2)" into cm-10.2
Merge branch 'cm-10.2' into martincz