Patch merged into coreboot/master: src/amd: Increase maximum blootblock execution count

the following patch was just integrated into master:
commit 5a1f3370ea61ef13e7f5ef703e39ed8a71f69700
Author: Timothy Pearson 
Date:   Tue Nov 3 19:02:26 2015 -0600

src/amd: Increase maximum blootblock execution count

Most AMD hardware requires at minimum two warm resets
    when booting from S5 (power off).  This is uncomfortably
    close to the maximum bootblock execution count, and has resulted
    in unstable normal/fallback operation on some machines.

Increase the default max bootblock execution count before fallback
    to 6.  This translates to roughly 2 - 3 failed boots before fallback
    mode will engage, with an absolute worst case of pushing the reset
    button 5 times to engage fallback mode in the absence of a dedicated
    recovery jumper.

Change-Id: I1911f1b77f168835b516e6a915d5b6949f47219a
    Signed-off-by: Timothy Pearson 
    Reviewed-on: http://review.coreboot.org/12317
    Reviewed-by: Alexandru Gagniuc 
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/12317 for details.

-gerrit