riscom8: Auto-load riscom8 module when device opened.

The riscom8 module is missing the char-major-48-* alias that would cause
it to be auto-loaded when a device of that type is opened.  This patch
adds the alias.
Signed-off-by: Scott James Remnant <scott@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/riscom8.c

@@ -48,6 +48,7 @@
 #include <linux/delay.h>
 #include <linux/tty_flip.h>
 #include <linux/spinlock.h>
+#include <linux/device.h>
 
 #include <linux/uaccess.h>
 
@@ -1524,6 +1525,7 @@ module_param(iobase2, int, 0);
 module_param(iobase3, int, 0);
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR);
 #endif /* MODULE */
 
 /*