Patch merged into coreboot/master: vendorcode/amd/agesa/f15tn: Fix out of bounds read on on memory voltage

the following patch was just integrated into master:
commit fecc24af049bfec00efce49858e228dd9ab2d11c
Author: Martin Roth 
Date:   Wed Jan 6 21:18:21 2016 -0700

vendorcode/amd/agesa/f15tn: Fix out of bounds read on on memory voltage

I think this has a fairly low likelyhood of happening, but if AGESA
    can't determine the voltage of the memory, it assignes a value of 255
    to the variable that it later uses to read from an 3-value array.  There
    is an assert, but that doesn't halt AGESA, so it would use some random
    value.  If the voltage can't be determined, fall back to 1.5v as the
    default value.

Fixes coverity warning 1294803 - Out-of-bounds read

Change-Id: Ib9e568175edbdf55a7a4c35055da7169ea7f2ede
    Signed-off-by: Martin Roth 
    Reviewed-on: https://review.coreboot.org/12855
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See https://review.coreboot.org/12855 for details.

-gerrit