galcore: sync with gc600_driver

BugLink: http://bugs.launchpad.net/bugs/611634

sync up to:
commit a87426e54fd5b0df062d04d57ad430476e939893
Author: Li Li <lea.li@marvell.com>
Date:   Fri Jun 4 13:28:46 2010 +0800

    sync with libgfx-marvell-0.8.0.1550_v2.tgz

Signed-off-by: Li Li <lea.li@marvell.com>
Signed-off-by: Eric Miao <eric.miao@canonical.com>
Signed-off-by: Brad Figg <brad.figg@canonical.com>