qcacmn: Fix typo "lenght"

Replace typo "lenght" with correct spelling "length".

Change-Id: Ieea0c547c61248e510835d16a9fa55ace486df23
CRs-Fixed: 2238309
diff --git a/wmi_unified_param.h b/wmi_unified_param.h
index 3072c3c..426751c 100644
--- a/wmi_unified_param.h
+++ b/wmi_unified_param.h
@@ -4044,7 +4044,7 @@
 /**
  * struct mgmt_params - Mgmt params
  * @vdev_id: vdev id
- * @buf_len: lenght of frame buffer
+ * @buf_len: length of frame buffer
  * @wbuf: frame buffer
  */
 struct mgmt_params {
@@ -4461,7 +4461,7 @@
  * @key: pointer to key
  * @key_len: length of key
  * @data: pointer data buf
- * @data_len: lenght of data buf
+ * @data_len: length of data buf
  * @mode: mode
  * @op: operation
  * @pdev_id: pdev_id for identifying the MAC
@@ -7875,7 +7875,7 @@
  * struct wmi_host_fips_event_param: FIPS event param
  * @pdev_id: pdev id
  * @error_status: Error status: 0 (no err), 1, or OPER_TIMEOUR
- * @data_len: FIPS data lenght
+ * @data_len: FIPS data length
  * @data: pointer to data
  */
 struct wmi_host_fips_event_param {