allKeys in DeviceConfigHelper should be populated with keys.

We have 2 instances of `DeviceConfigHelper`. One is `DeviceConfigHelper<SearchConfigProvider>` which contains all the old keys. One is DeviceConfigHelper<DeviceConfigWrapper> which contains all the new(omni) keys.

Bug: 338430152
Test: manual
Flag: NA
Change-Id: Ic0450df795888c8e5e7892157a8596cd86eb0d99
2 files changed