[MAC rand] Removing persistent storage
Will now calculate the randomized MAC address directly for new wifi
networks.
For existing networks that already have saved randomized MAC address, we
will continue to use the saved MAC.
Bug: 140065828
Test: unit tests before and after factory reset
Test: Verified that new MAC address entries are not populated into
WifiConfigStore.xml
Test: Manually verified calculated MAC addresses are consistent and
valid.
Test: Manually verified that the device secret is persisted over
different builds
Change-Id: Ie216fbaf33e2582ae1a0030c5046b0d4162255d9
Merged-In: I4b4e2cc6fe304d277661c4743e4fb86bb7500f16
(cherry picked from commit I4b4e2cc6fe304d277661c4743e4fb86bb7500f16)
4 files changed
