swup: Add new data structures

commit 78199d91f50f79e8991cc301cb57cbd0d515a71a from
git@git.assembla.com:cavium/WindRiver.linux.git

Add new data structures to synchonize kernel
swup driver with ATF.

Change-Id: Iabcb00d5708a615c7e2b7b4530a53693421af4ee
Signed-off-by: Witold Sadowski <wsadowski@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/120867
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Chandrakala Chavva <cchavva@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>