qcacmn: Fix QDF documentation

The kernel-doc script identified a large number of documentation
issues in the QDF. A series of patches has already fixed many of the
issues, so fix most of the remaining ones.

Note that the QDF IPA abstraction still has issues, but it is under
rework, so not trying to clean it up until after the rework is
complete.

Change-Id: I10c33e341cb6b46e0f8ada99069616d450c07189
CRs-Fixed: 3406197

qdf/inc/qdf_cpuhp.h

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -27,7 +28,7 @@
 #include "qdf_status.h"
 #include "qdf_types.h"
 
-/**
+/*
  * struct qdf_cpuhp_handler - an opaque hotplug event registration handle
  */
 struct qdf_cpuhp_handler;