Merge tag 'pull-loongarch-20240125' of https://gitlab.com/gaosong/qemu into staging

pull-loongarch-20240125

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* tag 'pull-loongarch-20240125' of https://gitlab.com/gaosong/qemu:
  target/loongarch/kvm: Enable LSX/LASX extension
  target/loongarch: Set cpuid CSR register only once with kvm mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>