Patch merged into coreboot/master: sb/amd/sb700: Add sb7xx_51xx_decode_last_reset()

the following patch was just integrated into master:
commit 056e454da343b9e7bf0d512b521acc8f1697284b
Author: Timothy Pearson 
Date:   Wed Apr 6 13:18:52 2016 -0500

sb/amd/sb700: Add sb7xx_51xx_decode_last_reset()

The SB700 family has the ability to report the last reset
    reason.  This is useful in the context of handling MCEs
    and recovering from fatal errors / sync floods.

Add a function to retrieve the last reset flags.

Change-Id: I754cb25e47bd9c1e4a29ecb6cb18017d1b7c3dc4
    Signed-off-by: Timothy Pearson 
    Reviewed-on: https://review.coreboot.org/14263
    Tested-by: Raptor Engineering Automated Test Stand 
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/14263 for details.

-gerrit