Patch merged into coreboot/master: 5021209 watchdog.h: Fix compile time error on disabling watchdog handling

the following patch was just integrated into master:
commit 5021209f5a94e862c6b2915e4e6993b4931364fe
Author: Patrick Georgi 
Date:   Mon Mar 11 18:32:50 2013 +0100

watchdog.h: Fix compile time error on disabling watchdog handling

There's a compile time error that we didn't catch since the
    board defaults as used by the build bot won't expose it.

Just make watchdog_off() a no-op statement so there aren't any
    stray semicolons in the preprocessor output.

Change-Id: Ib5595e7e8aa91ca54bc8ca30a39b72875c961464
    Reported-by: 'lautriv' on irc.freenode.net/#coreboot
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/2627
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel

See http://review.coreboot.org/2627 for details.

-gerrit