iwlwifi: don't dump_stack() when we get an unexpected interrupt

It is yet unclear if the WARNING really points to a real problem,
but for sure the stack dump doesn't help fixing it.
Just use a regular error print instead.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220205112029.a79e733a12f7.I8189344294222be0589fa43cc70fdf38e3057045@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

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

@@ -1627,10 +1627,13 @@ irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id)
 	if (WARN_ON(entry->entry >= trans->num_rx_queues))
 		return IRQ_NONE;
 
-	if (WARN_ONCE(!rxq,
-		      "[%d] Got MSI-X interrupt before we have Rx queues",
-		      entry->entry))
+	if (!rxq) {
+		if (net_ratelimit())
+			IWL_ERR(trans,
+				"[%d] Got MSI-X interrupt before we have Rx queues\n",
+				entry->entry);
 		return IRQ_NONE;
+	}
 
 	lock_map_acquire(&trans->sync_cmd_lockdep_map);
 	IWL_DEBUG_ISR(trans, "[%d] Got interrupt\n", entry->entry);