aarch64: initial psci communication #88

Job	Run time
boot-protocol-header	54s
build-kernel-aarch64 (dev, --all-features)	57s
build-kernel-x86_64 (dev, --all-features)	1m 14s
build-limine-aarch64 (dev, --all-features)	59s
build-kernel-aarch64 (dev, --no-default-features)	57s
build-kernel-x86_64 (dev, --no-default-features)	1m 8s
build-limine-aarch64 (dev, --no-default-features)	58s
build-limine-x86_64 (dev, --all-features)	1m 13s
build-kernel-aarch64 (release, --all-features)	55s
build-kernel-x86_64 (release, --all-features)	1m 3s
build-limine-x86_64 (dev, --no-default-features)	1m 9s
build-limine-aarch64 (release, --all-features)	55s
build-kernel-aarch64 (release, --no-default-features)	54s
build-kernel-x86_64 (release, --no-default-features)	1m 0s
build-limine-x86_64 (release, --all-features)	1m 13s
build-limine-aarch64 (release, --no-default-features)	55s
build-limine-x86_64 (release, --no-default-features)	1m 4s
lint-clippy	1m 30s
lint-docs	1m 37s
lint-python	12s
lint-rustfmt	44s
unit-test	1m 12s
	22m 43s

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