Introduce Radio Hal Device Capabilities

* Asks the device what set of capabilities are supported on the device
  with respect to the Radio Hal
* The capabilities struct is left empty and will be filled
  in once the first set of radio hal capabilities are nailed down later
  in Android S

Test: Added cts, ran cts, and std tests
Bug: 163085807
Merged-In: I867f26bc649005e89ebf7a0b74f6fbeb2f44ac93
Change-Id: I837d82592e8ddfef5b1ff5eb0dd983a0d13383ed