The kernel-doc script identified many documentation issues in
the wmi folder, so fix them.
Note that in quite a few cases there is duplicate documentation in .h
and .c files, and in those cases remove the documentation from the .c
files since the interface should be documented, not the
implementation.
Change-Id: I097d5b8e8f0ba09046b7b8abe338d05a00f8cc7e
CRs-Fixed: 3372831
whenever there is a wmi timeout and recovery is triggered, the
wmi history gives insight into reason for the recovery, hence save
the last 5 commands/events to understand the reason for the hang
recovery.
Change-Id: Ie4e0431a8fa6971e6b25b20a6f267341d3f3f4fd
CRs-Fixed: 2650340
