qcacld-3.0: Fix misspelling of "threshold"

The following change introduced a misspelling of "threshold", so fix
it.
- Change-Id Ie98a1b8681f41f3a63523ac40b5cfb688a7b0cb0
  qcacld-3.0: Handle VENDOR_SUBCMD_SR and operation

Change-Id: I255ef45d9978ce777a41564f0d05e6d99efe5a4b
CRs-Fixed: 3319363

components/spatial_reuse/dispatcher/inc/spatial_reuse_ucfg_api.h

@@ -124,7 +124,7 @@ void ucfg_spatial_reuse_send_sr_prohibit(struct wlan_objmgr_vdev *vdev,
  * vdev: object manager vdev
  * pdev: object manager pdev
  * is_sr_enable: sr enable/disable
- * pd_threshold: pd thresold
+ * pd_threshold: pd threshold
  *
  * Return: Success/Failure
  */