Disable auto connect while DPP session in progress

If the mac address changes while dpp session is in progress, it breaks
the dpp interactive process. To avoid changing the mac address, scan
results will be ignored while dpp session is in progress.

Bug: 269420256
Test: atest com.android.server.wifi
Change-Id: Iea2044ccc2347e109426641d4f741c784b743a9e
2 files changed