P2PS: Refactor p2p_data::query_hash and p2p_data::query_count use

P2PS: Refactor p2p_data::query_hash and p2p_data::query_count use

Avoid using p2p_data::query_hash for both Probe Request frame processing
and for hashes specified by p2p_find. It's resolved by use of local
query_hash and query_count variables in p2p_reply_probe().

Since p2p_data::query_hash is used only for seek hash values rename
p2p_data::query_hash to p2ps_seek_hash.

Delete p2p_data::query_count since it's not needed anymore.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>