p2p: MAC randomization feature overlay

Add OEM feature overlay for p2p MAC randomization.
Disabled by default. Should be enabled per device after testing.

Bug: 118904478
Test: Unit tests - atest FrameworksWifiTests
Test: flash device with the default value (false) and verify MAC
randomization is not working.
Test: flash with the device overlay which sets this to true and verify
that MAC randomization is working again.

Change-Id: I94114acc51ebaad450f12eea37bd0d861efa33df
2 files changed