Merge tag 'pull-hex-20220731' of https://github.com/quic/qemu into staging

Hexagon bug fixes and test improvements

1) Fixes a bug in qemu-hexagon
2) Fixes a bug in a test case
3) Adds reference file for float_convd test case

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* tag 'pull-hex-20220731' of https://github.com/quic/qemu:
  Hexagon (tests/tcg/hexagon) reference file for float_convd
  Hexagon (tests/tcg/hexagon) Fix alignment in load_unpack.c
  Hexagon (target/hexagon) make VyV operands use a unique temp

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