Merge tag 'pull-ppc-for-11.0-20260112' of https://gitlab.com/harshpb/qemu into staging

First PPC PR for 11.0

- Snapshot support for several ppc devices
- Migration fix and OS level migration test for pseries
- Minor code cleanups

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# Primary key fingerprint: 6B81 0CD6 D2BE 10F3 883D  2142 4544 E994 F9D6 8FBB

* tag 'pull-ppc-for-11.0-20260112' of https://gitlab.com/harshpb/qemu:
  tests/functional: Add a OS level migration test for pseries
  target/ppc: Fix env->quiesced migration
  hw/ppc: Add VMSTATE information to PnvPsi
  hw/ppc: pnv_chiptod.c add vmstate support
  hw/ppc: pnv_core.c add vmstate support
  hw/ppc: pnv_adu.c added vmstate support
  hw/ppc: Add pnv_i2c vmstate support
  hw/ppc: Add pnv_spi vmstate support
  hw/ppc: Add VMSTATE information for LPC model
  target/ppc/kvm : Use macro names instead of hardcoded constants as return values

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