HSD #14015549959: arm64: dts: agilex5: Add nand device tree

commit 0f2377fcecb910a43ada562d55f356814d4489de from
https://github.com/altera-opensource/linux-socfpga.git



Add nand device tree for Intel SocFPGA Agilex5 platform.

Signed-off-by: Niravkumar L Rabara <niravkumar.l.rabara@intel.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>