Patch merged into coreboot/master: e45a3eb arm64: Pass in CROSS_COMPILE_arm64 for ARM TF compilation

the following patch was just integrated into master:
commit e45a3ebec54068528f41814b71545dd7ae76787a
Author: Furquan Shaikh 
Date:   Wed May 20 10:12:19 2015 -0700

arm64: Pass in CROSS_COMPILE_arm64 for ARM TF compilation

BUG=chrome-os-partner:40414
    BRANCH=None
    TEST=ATF compilation successful

Change-Id: Ib4eeced911181f756bd47c19eeb2d196ab5a0a2f
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 3061a219c24294a9fec4f26fc60b02f67bb55d66
    Original-Change-Id: I39849d4048d7333eeab9bd698b4fd496181081a2
    Original-Signed-off-by: Furquan Shaikh 
    Original-Reviewed-on: https://chromium-review.googlesource.com/272374
    Original-Reviewed-by: Julius Werner 
    Original-Tested-by: Furquan Shaikh 
    Original-Commit-Queue: Furquan Shaikh 
    Original-Trybot-Ready: Furquan Shaikh 
    Reviewed-on: http://review.coreboot.org/10307
    Tested-by: build bot (Jenkins)
    Reviewed-by: Furquan Shaikh

See http://review.coreboot.org/10307 for details.

-gerrit