Merge "Don't send thermal mitigation request to modem if not supported." am: c17eb3d1c8 am: 45494dcc2c am: 7788016689 am: 7b8d0a8978

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/1621947

Change-Id: Ia11de9f55e6562cd9850c5961359052472cb402b