For the moment, move PRAGMA_DISABLE_PACKED_WARNING and
PRAGMA_ENABLE_PACKED_WARNING back to bsd-user/qemu.h.

Of course, these should be in compiler.h, but that interferes with too
many things at the moment, so take one step back to unbreak clang
linux-user builds first. Use the exact same version that's in
linux-user/qemu.h since that's what should be in compiler.h.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

…into staging

Pull request: fix ci by fixing clang-user

# -----BEGIN PGP SIGNATURE-----
# Comment: GPGTools - https://gpgtools.org
#
# iQIzBAABCgAdFiEEIDX4lLAKo898zeG3bBzRKH2wEQAFAmTvYpcACgkQbBzRKH2w
# EQCKvhAA3nfvm+UMoRbOjFGuOOZKy+HR+nk40rxHa8CzOabbJnx4EtdBZTnNJ+f5
# WxLvEIzQw6iLYoqr6Rkcn0MkfYryesDScig7tQW0A87DtivXbDyrRbcmAQuCrcSe
# EpEqjBOueiC9xe1U9hzdpNyBkuXQWFUNGKX6swR5vpOEb1hHKzFMY+60vEgcjcjQ
# /y7cQcwRJeMNyBEwAM4HSgcVIKxB8ZmIQpIbsWJPAJhEZZE6SvTiKhM0PlZvrwnv
# dlEV8F68f3cBka0QmX5JJNJQdXn+2gb2Ix06dm8z7BWtiZoH/rcJ0FfVjMk7bkcC
# 2e0J0jI9JTf1MKNGHbO8V2YoZw+jCB9nr6N8HEymgla7bK6QPD6LIdTs0i6PUEB8
# PUf902NrOS+kbWTGsb9GINegklk3pJ0jnFZagqfCUxARQ2qrqmA6q5vg9d0FjPVl
# vJ13weKkSHW126/4Wr23EhUFIoYtiuMjgz/Bjd5TvzhvnVGJiPJaY9sGpgZZ3PJJ
# EPCRms5MRut/NE0znKQ9ozAz1FMdVd2XnXeClWJd2NUmGc7ZbBGMcSvUYdC9KLIK
# oSQRBTUDgGIdHnB+g367vKs98ir+03gOcpQk9z0fy25wCymmp/Uco8jsm6hCgSGn
# x7b9R6/+92xd/IZFZm5N3/llu6JHYPEMhdg8evNp9VTFPoi9PYc=
# =jG8p
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 30 Aug 2023 11:39:03 EDT
# gpg:                using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg:                 aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg:                 aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg:                 aka "Warner Losh <imp@village.org>" [unknown]
# gpg:                 aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD  E1B7 6C1C D128 7DB0 1100

* tag 'quick-fix-pull-request' of https://gitlab.com/bsdimp/qemu:
  bsd-user: Move PRAGMA_DISABLE_PACKED_WARNING etc to qemu.h

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>