haven: rm: Add support to get hypervisor resources

VMs need to make GET_HYP_RESOURCE call to get resource information (dbl,
msgqs) associated between VMs. If the caller VM want to get resources
associated with another VM, caller VM has to supply the VMID of the
end point. Add support to get hypervisor resources.

Change-Id: Id5f16796ba2a84917c9a072cfeb36d24010e34da
Signed-off-by: Murali Nalajala <mnalajal@codeaurora.org>