Input: sysrq - drop tty argument form handle_sysrq()

Sysrq operations do not accept tty argument anymore so no need to pass
it to us.

[Stephen Rothwell <sfr@canb.auug.org.au>: fix build breakage in drm code
 caused by sysrq using bool but not including linux/types.h]

[Sachin Sant <sachinp@in.ibm.com>: fix build breakage in s390 keyboadr
 driver]

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/xen/manage.c

@@ -237,7 +237,7 @@ static void sysrq_handler(struct xenbus_watch *watch, const char **vec,
 		goto again;
 
 	if (sysrq_key != '\0')
-		handle_sysrq(sysrq_key, NULL);
+		handle_sysrq(sysrq_key);
 }
 
 static struct xenbus_watch sysrq_watch = {