alpha: remove unneeded semicolon in osf_sys.c

Fix the following coccicheck warning:

arch/alpha/kernel/osf_sys.c:680:2-3: Unneeded semicolon

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
1 file changed