hvc_console: Export (GPL'ed) hvc_remove

The virtio console, which uses hvc, will get the ability to hot-unplug
ports. Export hvc_remove so that virtio_console can disassociate with
hvc.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Cc: linuxppc-dev@ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/char/hvc_console.c

@@ -832,6 +832,7 @@ int hvc_remove(struct hvc_struct *hp)
 		tty_hangup(tty);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(hvc_remove);
 
 /* Driver initialization: called as soon as someone uses hvc_alloc(). */
 static int hvc_init(void)