This is the initial Zephyr support for Intel SoC FPGA Agilex support.
Agilex has quad-core 64-bit Arm Cortex*-A53.
This patch build Zephyr for Agilex development kit with 256KB SDRAM and
support hello_world sample code. The Zephyr will need to be loaded by
Intel Arm Trusted Firmware (ATF).
Agilex Zephyr boot flow:
FSBL:ATF BL2(EL3) -> SSBL:ATF BL31(EL3) -> OS:Zephyr(EL2->EL1)
Intel ATF can be loaded from:
https://github.com/altera-opensource/arm-trusted-firmware.git
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
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