[PATCH 4/4] selftests: liveupdate: Add riscv support

[sashiko-bot at kernel.org]

> Teach the live update vmtest runner about riscv64: map the target to ARCH
> riscv, describe the QEMU virt machine, the kernel image and its console,
> and add the arch config fragment holding the three symbols needed to get
> a console on the virt machine's 16550A port.
> 
> KHO is the only dependency of LIVEUPDATE (kernel/liveupdate/Kconfig), so
> now that riscv has KHO the LUO tests only need the runner to stop
> rejecting the architecture.
> 
> Add riscv64 to the CROSS_COMPILE auto-detection list and to the target
> list of the batch runner as well, matching the existing aarch64/x86_64
> entries.
> 
> Signed-off-by: Chen Pei <cp0613 at linux.alibaba.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261023111612.2134-1-cp0613@linux.alibaba.com?part=4