[coreboot-gerrit] Patch merged into coreboot/master: 0179fcf arm64: Implement PSCI command support

the following patch was just integrated into master:
commit 0179fcfaab2fdbff0da00bf76be08e913d5a0f47
Author: Aaron Durbin 
Date:   Thu Oct 30 13:13:50 2014 -0500

arm64: Implement PSCI command support

Provide support for SoCs to participate in PSCI commands.
    There are 2 steps to a command:
    1. prepare() - look at request and adjust state accordingly
    2. commit() - take action on the command

The prepare() function is called with psci locks held while
    the commit() function is called with the locks dropped.
    No SoC implements the appropriate logic yet.

BUG=chrome-os-partner:32136
    BRANCH=None
    TEST=Booted PSCI kernel -- no SMP because cmd_prepare()
         knowingly fails. Spintable kernel still brings up both
         CPUs.

Change-Id: I2ae4d1c3f3eac4d1060c1b41472909933815d078
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 698d38b53bbc2bc043548792cea7219542b5fe6b
    Original-Change-Id: I0821dc2ee8dc6bd1e8bc1c10f8b98b10e24fc97e
    Original-Signed-off-by: Aaron Durbin 
    Original-Reviewed-on: https://chromium-review.googlesource.com/226485
    Original-Reviewed-by: Furquan Shaikh 
    Reviewed-on: http://review.coreboot.org/9423
    Reviewed-by: Stefan Reinauer 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/9423 for details.

-gerrit