qcacld-3.0: [11AX] Add support for vendor commands

Add support for vendor commands to query HE capabilities.

Add support to include HE capabilities in wma_handle as received
from FW to be sent to userspace when queried via vendor sub command.

Change-Id: Icbf141bd1e0646346c2b18aabf3dfb3590d853d7
CRs-Fixed: 1073481

core/wma/inc/wma.h

@@ -1566,6 +1566,10 @@ typedef struct {
 	tp_wma_packetdump_cb wma_mgmt_tx_packetdump_cb;
 	tp_wma_packetdump_cb wma_mgmt_rx_packetdump_cb;
 	tSirLLStatsResults *link_stats_results;
+
+#ifdef WLAN_FEATURE_11AX
+	struct he_capability he_cap;
+#endif
 } t_wma_handle, *tp_wma_handle;
 
 /**