wlan: Support for IPV6 Unicast/Multicast Filtering

Adding IOCTL command to configure Firmware for either IPV6 MC and UC
Filtering or IPV6 MC only filtering.

CRs-Fixed: 499283
Change-Id: Ia21ec8c28d5e255459e5d4b507ee6edfaf813d5d
diff --git a/CORE/HDD/inc/wlan_hdd_main.h b/CORE/HDD/inc/wlan_hdd_main.h
index 91efe53..b0eae64 100644
--- a/CORE/HDD/inc/wlan_hdd_main.h
+++ b/CORE/HDD/inc/wlan_hdd_main.h
@@ -1081,5 +1081,7 @@
 void hdd_reset_pwrparams(hdd_context_t *pHddCtx);
 int wlan_hdd_validate_context(hdd_context_t *pHddCtx);
 VOS_STATUS hdd_issta_p2p_clientconnected(hdd_context_t *pHddCtx);
-
+#ifdef WLAN_FEATURE_PACKET_FILTERING
+int wlan_hdd_setIPv6Filter(hdd_context_t *pHddCtx, tANI_U8 filterType, tANI_U8 sessionId);
+#endif
 #endif    // end #if !defined( WLAN_HDD_MAIN_H )