feat(xilinx): clean macro names

This is preparation for cleaning up IPI local and remote side
communication. As of today macros are aligned to communication
channel but there is missing calculation based on channel
selection.

Change-Id: Iac7daf832ff372ea2fece72a15afdfe988b4b7db
Signed-off-by: Michal Simek <michal.simek@amd.com>
6 files changed