Patch merged into coreboot/master: ee28c86 rk3288: detect sdram size at runtime

the following patch was just integrated into master:
commit ee28c86ccde1427e5f9aa4a110ee7d7f2629bc3c
Author: huang lin 
Date:   Mon Jan 26 21:04:55 2015 +0800

rk3288: detect sdram size at runtime

we use Kconfig define sdram size before, but there may use
    different sdram size in the same overlay, so we must detect
    sdram size at runtime now. If we use 4G byte sdram, we can
    use[0x00000000:0xff000000], since the [0xff000000:0xffffffff]
    is the register space.

BUG=chrome-os-partner:35521
    TEST=Boot from mighty
    BRANCH=None

Change-Id: I7a167c268483743c3eaed8b71c7ec545a688270c
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: ad4f27dd08c467888eee87e3d9c4ab3077751898
    Original-Change-Id: Ib32aed50c9cae6db495ff3bab28266de91f3e73b
    Original-Signed-off-by: huang lin 
    Original-Reviewed-on: https://chromium-review.googlesource.com/243139
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: http://review.coreboot.org/9734
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/9734 for details.

-gerrit