staging: android: binder: Add copy_flat_binder_object()

This patch adds copy_flat_binder_object macro() that will help
dereference struct flat_binder_object on 64bit systems where the
structure differs between 32bit and 64bit userspace.

This patch is a temporary patch that will be extended with 32bit compat
handling.

Change-Id: I94fab83332b1f69e3d38d19d84fc8beacd5d8e74
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
Git-commit: 47aba82194df5b9a2b38e0e8c8f242159a6f22cf
Git-repo: git://linux-arm.org/linux-2.6-armdroid.git


Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>