arm: socfpga: Add handoff data support for SoCFPGA Agilex5 device

Agilex5 supports both HPS handoff data and DDR handoff data.
Existing HPS handoff functions are restructured to support both existing
devices and Agilex5 device.

Signed-off-by: Tien Fong Chee <tien.fong.chee@altera.com>
3 files changed