Patch merged into coreboot/master: 5c015f0 southbridge/amd/pi: write_hpet requires additional config option

the following patch was just integrated into master:
commit 5c015f045ddd00d34e56ee407ed2596e97a1433a
Author: Dave Frodin 
Date:   Tue Jan 27 07:19:04 2015 -0700

southbridge/amd/pi: write_hpet requires additional config option

This copies what was done in southbridge/amd/agesa in:
    commit 56f46d8 agesa/family15tn: Switch to per-device ACPI

TEST: amd/lamar.

Change-Id: Id8890ccd4a1ea783ad4740333ae6b061b6bbd7fc
    Signed-off-by: Dave Frodin 
    Reviewed-on: http://review.coreboot.org/8288
    Tested-by: build bot (Jenkins)
    Reviewed-by: Alexandru Gagniuc

See http://review.coreboot.org/8288 for details.

-gerrit