[coreboot] Patch merged into master: f2674cc i82801gx: read RTC status register to prevent IRQ storm

the following patch was just integrated into master:
commit f2674cc3d7e90ed01af8449f8786aa7f42cb84b8
Author: Sven Schnelle 
Date:   Wed Jun 29 15:05:28 2011 +0200

i82801gx: read RTC status register to prevent IRQ storm

My Thinkpad appeared dead. After investigation, it turned out
    that the RTC Alarm was triggering an RTC PM1 SMI, but the SMI
    handler didn't read the status register, so it was triggered again.

This is a really nasty situation, as it means you have to dissemble
    your Notebook just to unplug the RTC battery.

Change-Id: I5ac611e8a72deb5f38c86486dbe0693804935723
    Signed-off-by: Sven Schnelle

See http://review.coreboot.org/67 for details.

-gerrit