refactor(ffa-notification): deprecate per-vCPU notification test coverage

* Per-vCPU notification support is now optional as per FF-A v1.3
  specification.

* Hafnium does not maintain global state for per-vCPU notification
  bindings, and does not support dual-mode reuse of a notification ID
  as both global and per-vCPU.

* This patch deprecates all TF-A test cases that validate per-vCPU
  notification signaling between VMs and SPs.

Change-Id: I33fdf6c71d9476568b925dd7412bdaffc7cafb9f
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
2 files changed