Reflect current state of torch in navigation ring button.

JIRA: CYAN-574

Patch Set 1  -  Initial release
Patch Set 2  -  Show the current state

Change-Id: I82594726df1c0b4b34efdb6e58a0300f99cb1cde
ServiceState: add support for DCHSPAP

Change-Id: Ib0a328652c14580718400b00146b770481be5458