[coreboot-gerrit] Patch merged into coreboot/master: selfboot: Move the usable-RAM check into a function

the following patch was just integrated into master:
commit 78c63860a61c4562e78a35c5d5457085acf27670
Author: Simon Glass 
Date:   Sun Sep 4 16:37:04 2016 -0600

selfboot: Move the usable-RAM check into a function

In preparation for making this check optional, move it into its own
    function. load_self_segments() is already long and we don't want to make
    it longer.

BUG=chrome-os-partner:56314
    BRANCH=none
    TEST=boot on gru and see that BL31 loads and runs correctly

Change-Id: If48d2bf485a23f21c5599670e77a7b8b098f1a88
    Signed-off-by: Martin Roth 
    Original-Commit-Id: 2381e02efa2033857ac06acbc4f0c0dd08de1080
    Original-Change-Id: I005e5e4d9b2136605bdd95e9060655df7a8238cb
    Original-Signed-off-by: Simon Glass 
    Original-Reviewed-on: https://chromium-review.googlesource.com/381092
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/16585
    Tested-by: build bot (Jenkins)
    Reviewed-by: Nico Huber 
    Reviewed-by: Paul Menzel

See https://review.coreboot.org/16585 for details.

-gerrit