swup: Remove smc_update_obj_info

commit bbe7b70fbb423948880366957fdd0fa26a564c2e from
git@git.assembla.com:cavium/WindRiver.linux.git

Remove smc_update_obj_info from
smc_update_descriptor_prev descriptor.
As smc_update_obj_info has changed, remove it from _prev
data structure used to communicate with ATF.
That change will allow kernel to be backwards-compatible
with old ATF swup implementation.

Change-Id: Ib0a150a6315984ce5a43288a79babac022602f61
Signed-off-by: Witold Sadowski <wsadowski@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/120866
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>