qcacmn: Vendor specific feature capability for dbs

Add feature capability indication for dbs for the
drivers to advertize support for this.

Change-Id: Ic6941e58a30d6aa6a867a12ddd7a8db5abbb1673
CRs-Fixed: 2821654

os_if/linux/qca_vendor.h

@@ -3753,6 +3753,10 @@ enum qca_wlan_vendor_attr_nd_offload {
  *	The driver-based SME cases also need to have this support for
  *	Adaptive 11r to handle the connection and roaming scenarios.
  *	This flag indicates the support for the same to the user space.
+ * @QCA_WLAN_VENDOR_FEATURE_CONCURRENT_BAND_SESSIONS: Device supports
+ *	concurrent network sessions on different Wi-Fi Bands. This feature
+ *	capability is attributed to the hardware's capability to support
+ *	the same (e.g., DBS).
  * @NUM_QCA_WLAN_VENDOR_FEATURES: Number of assigned feature bits
  */
 enum qca_wlan_vendor_features {
@@ -3769,6 +3773,7 @@ enum qca_wlan_vendor_features {
 	QCA_WLAN_VENDOR_FEATURE_6GHZ_SUPPORT = 10,
 	QCA_WLAN_VENDOR_FEATURE_THERMAL_CONFIG = 11,
 	QCA_WLAN_VENDOR_FEATURE_ADAPTIVE_11R = 12,
+	QCA_WLAN_VENDOR_FEATURE_CONCURRENT_BAND_SESSIONS = 13,
 
 	NUM_QCA_WLAN_VENDOR_FEATURES /* keep last */
 };