p2p: support creating a group with a configuration

If specifying a configuration for creating group,
pass them to supplicant for setting up a group.

Bug: 64695709
Test: manual test
      * create a group with pre-defined configuration.
      * join it as new Group Client.
      * join it as legacy Wi-Fi STAs.
Test: Unit tests - atest frameworks/opt/net/wifi/tests/wifitests

Change-Id: I8f51f71dec979d13864953c94d7f8f59413449e0
4 files changed