HSD #18025905298: arm64: dts: agilex5: Add GPIO PortA node (#256)

commit 345f28c0f1cad8c01b6790faebb1b3775eb783cc from
https://github.com/altera-opensource/linux-socfpga.git

 socfpga-6.1.55-lts.

Add GPIO Port0 in Agilex5 device tree.

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