qcacld-3.0: Add Vendor command to set/get NUD debug stats

Add vendor commands to set/reset and get NUD debug stats
from firmware.

Change-Id: I773c04bb3f7c6d5ed28528cf2174b3d63de57d98
CRs-Fixed: 2011456
diff --git a/core/wma/inc/wma_internal.h b/core/wma/inc/wma_internal.h
index faf5d1e..df6f34d 100644
--- a/core/wma/inc/wma_internal.h
+++ b/core/wma/inc/wma_internal.h
@@ -1290,6 +1290,8 @@
  */
 QDF_STATUS wma_send_vdev_stop_to_fw(t_wma_handle *wma, uint8_t vdev_id);
 
+int wma_get_arp_stats_handler(void *handle, uint8_t *data, uint32_t data_len);
+
 /**
  * wma_send_vdev_up_to_fw() - send the vdev up command to firmware
  * @wma: a reference to the global WMA handle