ath10k: Fix p2p_listen for wcn3990

p2p_listen not working due to inncorrect scan flags
passed to firmware.

Disable the fitlering out of probe request flag in
scan flag during remain on channel in p2p listen.

CRs-Fixed: 2095628
Change-Id: Ie39222c487160ba4001771fc8e1c6f6f161dfb65
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>