HapClientService: Don't use cache for PTS

PTS wants us to do operations on remote device, so when enabled, call
native.

Bug: 238171211
Test: atest BluetoothInstrumentationTests
Test: PTS
Tag: #feature
Merged-In: I14f8eda50321f941b69fa1cd37403b131dc5938d
Change-Id: I14f8eda50321f941b69fa1cd37403b131dc5938d
(cherry picked from commit b9dac8a5)