tests: Fix p2p_go_move_scm_peer_does_not_support to clear avoid freqs

tests: Fix p2p_go_move_scm_peer_does_not_support to clear avoid freqs

The P2P channel list on dev[1] at the end of
p2p_go_move_scm_peer_does_not_support was empty because all of the 2.4
GHz band got disabled by the simulated avoid frequencies driver event.
That channel list needs to be cleared prior to resetting regulatory
domain back to world roaming to get the P2P channel list updated
properly for the following test cases.

This was triggered by the following test case sequence:
p2p_go_move_scm_peer_does_not_support persistent_group_and_role_change

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>