iwlwifi: pcie: apply no-reclaim logic only to group 0

When applying no-reclaim logic to commands other than the group
zero for legacy commands, commands such as 0x1c (TX_CMD in group
0) can't be used in any other group. Fix that by applying this
logic only for group 0 - it's not and should never be needed for
any other groups.

Reported-by: Sharon Dvir <sharon.dvir@intel.com>
Reported-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/pcie/rx.c

@@ -1147,7 +1147,7 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans,
 		 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
 		 *   but apparently a few don't get set; catch them here. */
 		reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME);
-		if (reclaim) {
+		if (reclaim && !pkt->hdr.group_id) {
 			int i;
 
 			for (i = 0; i < trans_pcie->n_no_reclaim_cmds; i++) {