Patch merged into coreboot/master: cab1991 ipq806x: Fix casting in cbmem_top() so >=2GB can be used

the following patch was just integrated into master:
commit cab19911ff54f5ffa3cd140a6871755140a768c8
Author: David Hendricks 
Date:   Fri Jun 27 13:25:02 2014 -0700

ipq806x: Fix casting in cbmem_top() so >=2GB can be used

This explicitly casts CONFIG_SYS_SDRAM_BASE to an unsigned type so
    we don't get compilation errors when increasing CONFIG_DRAM_SIZE_MB.

BUG=chrome-os-partner:29871
    BRANCH=storm
    TEST=compilation no longer fails with DRAM_SIZE set to 1024

Original-Signed-off-by: David Hendricks 
    Original-Change-Id: I9717c39d87682d43ec4e7a4042d9b559a1d7eedb
    Original-Reviewed-on: https://chromium-review.googlesource.com/206010
    Original-Reviewed-by: Stefan Reinauer 
    (cherry picked from commit 178db896346ae8cbc5ddec5373a83688f32c62ba)
    Signed-off-by: Marc Jones

Change-Id: I68c11d398820684ad928bdfdd74f7a6885247333
    Reviewed-on: http://review.coreboot.org/8059
    Reviewed-by: Stefan Reinauer 
    Reviewed-by: Kyösti Mälkki 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/8059 for details.

-gerrit