Input: max8925_onkey - don't mark comment as kernel-doc

Change the comment to a normal (non-kernel-doc) comment to avoid
these kernel-doc warnings:

max8925_onkey.c:2: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 * MAX8925 ONKEY driver
max8925_onkey.c:2: warning: missing initial short description on line:
 * MAX8925 ONKEY driver

Fixes: 3734574 ("Input: enable onkey driver of max8925")
Signed-off-by: Randy Dunlap <[email protected]>
Reported-by: kernel test robot <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

Author: rddunlap

drivers/input/misc/max8925_onkey.c

@@ -1,4 +1,4 @@
-/**
+/*
  * MAX8925 ONKEY driver
  *
  * Copyright (C) 2009 Marvell International Ltd.