IDumpstateDevice@1.1 polish

- Return a DumpstateStatus from dumpstateBoard_1_1
- Better toggle API surface: set/getDeviceLoggingEnabled
- Improved testing to allow for unsupported DumpstateMode values

Bug: 143183758
Bug: 143184495
Test: atest VtsHalDumpstateV1_1TargetTest
Change-Id: I505c2a790dc28ddce9b6f5b674394ef65b31c80c