Merge tag 'pull-loongarch-20250828' of https://github.com/gaosong715/qemu into staging

pull-loongarch-20250828

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* tag 'pull-loongarch-20250828' of https://github.com/gaosong715/qemu:
  hw/intc/loongarch_pch_pic: Fix ubsan warning and endianness issue
  target/loongarch: Guard 64-bit-only insn translation with TRANS64 macro

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>