misc: mei: main.c: fix kernel-doc warnings

misc: mei: main.c: fix kernel-doc warnings

Fix kernel-doc warnings in main.c:

main.c:465: warning: contents before sections
main.c:590: warning: missing initial short description on line:
 * mei_ioctl_client_notify_request -

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20231012024845.29169-8-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>