qcacmn: Add a new QCA vendor attribute to support flexible TWT

Add a new attribute QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_SP_START_OFFSET to
configure offset to shift start of the service period. This attribute
will be used when device supports flexible TWT. If provided, this
attribute will override QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_WAKE_TIME.

Change-Id: I1f066f328c6d0f3ca4d4bf4a94e63647d639f49d
CRs-Fixed: 3299714

os_if/linux/qca_vendor.h

@@ -9756,6 +9756,13 @@ enum qca_wlan_vendor_attr_twt_resume {
  * @QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_WAKE_TIME_TSF: Optional (u64)
  * This field contains absolute TSF value of the time at which twt
  * sesion will be resumed.
+ *
+ * @QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_SP_START_OFFSET: Optional (s32)
+ * This field will be used when device supports Flexible TWT.
+ * This field contains an offset value by which to shift the starting time
+ * of the next service period. The value of offset can be negative or positive.
+ * If provided, this attribute will override
+ * QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_WAKE_TIME. The units are in microseconds.
  */
 enum qca_wlan_vendor_attr_twt_nudge {
 	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_INVALID = 0,
@@ -9764,6 +9771,7 @@ enum qca_wlan_vendor_attr_twt_nudge {
 	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_NEXT_TWT_SIZE = 3,
 	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_MAC_ADDR = 4,
 	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_WAKE_TIME_TSF = 5,
+	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_SP_START_OFFSET = 6,
 
 	/* keep last */
 	QCA_WLAN_VENDOR_ATTR_TWT_NUDGE_AFTER_LAST,