[WIP] scripts: Add script to build QEMU #1898

Job	Run time
Setup	7s
GNU Toolchain aarch64-zephyr-elf (macos-x86_64)	31m 8s
Host Tools (linux-x86_64)	19m 13s
LLVM Toolchain (macos-x86_64)	30m 37s
GNU Toolchain aarch64-zephyr-elf (linux-x86_64)	15m 30s
GNU Toolchain aarch64-zephyr-elf (linux-aarch64)	27m 54s
LLVM Toolchain (windows-x86_64)	31m 36s
GNU Toolchain aarch64-zephyr-elf (macos-aarch64)	20m 4s
Host Tools (macos-x86_64)	41s
Host Tools (linux-aarch64)	29m 44s
LLVM Toolchain (linux-x86_64)	31m 34s
LLVM Toolchain (macos-aarch64)	32m 5s
Host Tools (macos-aarch64)	41s
GNU Toolchain aarch64-zephyr-elf (windows-x86_64)	27m 17s
LLVM Toolchain (linux-aarch64)	31m 40s
CMake Package (macos-x86_64)	13s
Host Tools (windows-x86_64)	1m 4s
CMake Package (linux-x86_64)	22s
CMake Package (linux-aarch64)	1m 1s
CMake Package (windows-x86_64)	19s
CMake Package (macos-aarch64)	13s
Distribution Bundle (${{ matrix.host.name }})	1s
Test (${{ matrix.testenv.name }}, ${{ matrix.toolchain }}) Subset ${{ matrix.subset }}	1s
Test Result	1s
	5h 33m 6s

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