Revert "[DO NOT MERGE] wifi: remove certificates for network factory reset"

This reverts commit ed098227320050d3db0b8482ff3298ae11fe1777.

Reason for revert: functional regression

Merged-In: I77c2875f7ab8bd77bbe01410abb6d3558c0479ae
Merged-In: Ibdddd8f8fe8651a730a3dca8e00cb5f657c13b6c
Change-Id: I343023166f946a4f71144da0f4f9587ac36e851b
9 files changed