Remove PDR's based on Terminus Handle

The current pldm infrastructure is written in way that
it deletes all the PDR's which are marked as "remote",when
we get a PDR refresh entire repository signal comes from remote
PLDM terminus,this does not work in muti-host scenario where BMC
talks to more than one HOST that talks pldm.

When a repository refresh signal comes form a remote PLDM terminus,
BMC is supposed to only delete the PDR's corresponding to the same
PLDM terminus.

Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: I51f77c3f9537da722a00d97070674958c5baf1b4