trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c

Trivial patch which adds the __init to the module_init function of
drivers/char/ipmi/ipmy_poweroff.c and corrects the location of __exit for the
cleanup function.
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>
Acked-by: NCorey Minyard <minyard@acm.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/char/ipmi/ipmi_poweroff.c

@@ -691,7 +691,7 @@ static struct ctl_table_header *ipmi_table_header;
 /*
  * Startup and shutdown functions.
  */
-static int ipmi_poweroff_init(void)
+static int __init ipmi_poweroff_init(void)
 {
 	int rv;
 
@@ -725,7 +725,7 @@ static int ipmi_poweroff_init(void)
 }
 
 #ifdef MODULE
-static __exit void ipmi_poweroff_cleanup(void)
+static void __exit ipmi_poweroff_cleanup(void)
 {
 	int rv;