hw/arm/xlnx-versal: cfu: refactor creation

hw/arm/xlnx-versal: cfu: refactor creation

Refactor the CFU device creation using the VersalMap structure. All
users of the APB IRQ OR gate have now been converted. The OR gate device
can be dropped.

Signed-off-by: Luc Michel <luc.michel@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250926070806.292065-18-luc.michel@amd.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>