This patch enables the partition image support for
agent drivers which support `boot` iterface.
Partial-Bug: 1526289
Co-Authored-By: Nisha Agarwal <agarwalnisha1980@gmail.com>
Depends-on: I22bc29a39bf5c35f3eecb6d4e51cebd6aee0ce1
Depends-on: I37908470484744bb720f741d378106d1cb1227a3
Change-Id: Ifc8ba098f13b6fde712a584798fceb0321137bc9