ppc patch queue 2021-06-03 Next batch of ppc target patches. Highlights are: * A fix for a regression with single-step mode * Start of moving ppc to use decodetree * Implementation of some POWER10 64-bit prefixed instructions * Several cleanups to softmmu code * Continued progress towards allowing --disable-tcg * Fix for the POWER PEF implementation * Fix for LPCR handling of hotplugged CPUs * Assorted other bugfixes and cleanups This patchset does contain a couple of changes to code outside my normal scope of maintainership, related to the removal of cpu_dump and cpu_statistics hooks. ppc was the last target arch implementing these at all, and they didn't really do anything there either. The patches should have relevant acks.