parisc: rtc: Add missing module alias

Make udev autoload the driver
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

drivers/rtc/rtc-parisc.c

@@ -81,3 +81,4 @@ module_exit(parisc_rtc_fini);
 MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("HP PA-RISC RTC driver");
+MODULE_ALIAS("platform:rtc-parisc");