soc: qcom: pil-msa: Allocate and load MBA and DP images at one location

Instead of allocating separate memory locations for the MBA
and Debug policy images, allocate memory once for both of
them. This is intended to save the Hypervisor from having
to program additional XPU slots.

CRs-Fixed: 882533
Change-Id: I8015148c29f528d56c9645d72d57bfe3776c379b
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>