Number of fixes for iface fuzzer.

1. fixed scalar random generation.
2. added mutate/random gen functions for TYPE_MASK.
3. fixed spec parsing.

Test: SANITIZE_TARGET="address coverage" make vts -j64 && vts-tradefed
run commandAndExit vts --skip-all-system-status-check --primary-abi-only
--skip-preconditions -l VERBOSE --module VtsHalBluetoothV1_0IfaceFuzzer
Change-Id: I48e5550cd20919ffb1f6506ab26ef1663ddaeefc
3 files changed