greybus: drop a bogus semicolon

Coccinelle reports that gb_svc_pwrmon_debugfs_init() has a block of
a for loop which is followed by an unnecessary semicolon.  Get rid
of that semicolon.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/svc.c

@@ -779,7 +779,7 @@ static void gb_svc_pwrmon_debugfs_init(struct gb_svc *svc)
 				    &pwrmon_debugfs_current_fops);
 		debugfs_create_file("power_now", S_IRUGO, dir, rail,
 				    &pwrmon_debugfs_power_fops);
-	};
+	}
 
 	kfree(rail_names);
 	return;