iwlwifi: mvm: enable VHT MU-MIMO for supported hardware

Incoming hardware will support VHT MU-MIMO. Declare this
capability for relevant hardware.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-9000.c b/drivers/net/wireless/intel/iwlwifi/iwl-9000.c
index 0835906..8e32a57 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-9000.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-9000.c
@@ -139,7 +139,8 @@
 	.smem_len = IWL9000_SMEM_LEN,					\
 	.thermal_params = &iwl9000_tt_params,				\
 	.apmg_not_supported = true,					\
-	.mq_rx_supported = true
+	.mq_rx_supported = true,					\
+	.vht_mu_mimo_supported = true
 
 const struct iwl_cfg iwl9260_2ac_cfg = {
 		.name = "Intel(R) Dual Band Wireless AC 9260",