Merge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210729' into staging

ppc patch queue 2021-07-29

Here's a small batch of bufixes for the ppc target to go into qemu-6.1.

# gpg: Signature made Thu 29 Jul 2021 08:01:00 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dg-gitlab/tags/ppc-for-6.1-20210729:
  kvm: ppc: Print meaningful message on KVM_CREATE_VM failure
  ppc/vof: Fix Coverity issues
  target/ppc: Ease L=0 requirement on cmp/cmpi/cmpl/cmpli for ppc32
  i2c/smbus_eeprom: Add feature bit to SPD data
  ppc/pegasos2: Fix spurious warning with -bios

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