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

Fix kernel-doc warnings in hbm.c:

hbm.c:98: warning: No description found for return value of 'mei_hbm_write_message'

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Tomas Winkler <[e-mail]>
Cc: Arnd Bergmann <[e-mail]>
Cc: Greg Kroah-Hartman <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/mei/hbm.c

···
  * @dev: mei device
  * @hdr: mei header
  * @data: payload
+ *
+ * Return: >=0 on success, <0 on error
  */
 static inline int mei_hbm_write_message(struct mei_device *dev,
 					struct mei_msg_hdr *hdr,