Pull powerpc fixes from Michael Ellerman:
 - opal-prd mmap fix from Vaidy
 - set kernel taint for MCEs from Daniel
 - alignment exception description from Anton
 - ppc4xx_hsta_msi build fix from Daniel
 - opal-elog interrupt fix from Alistair
 - core_idle_state race fix from Shreyas
 - hv-24x7 lockdep fix from Sukadev
 - multiple cxl fixes from Daniel, Ian, Mikey & Maninder
 - update MAINTAINERS to point at shared tree

* tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  cxl: Check if afu is not null in cxl_slbia
  powerpc: Update MAINTAINERS to point at shared tree
  powerpc/perf/24x7: Fix lockdep warning
  cxl: Fix off by one error allowing subsequent mmap page to be accessed
  cxl: Fail mmap if requested mapping is larger than assigned problem state area
  cxl: Fix refcounting in kernel API
  powerpc/powernv: Fix race in updating core_idle_state
  powerpc/powernv: Fix opal-elog interrupt handler
  powerpc/ppc4xx_hsta_msi: Include ppc-pci.h to fix reference to hose_list
  powerpc: Add plain English description for alignment exception oopses
  cxl: Test the correct mmio space before unmapping
  powerpc: Set the correct kernel taint on machine check errors
  cxl/vphb.c: Use phb pointer after NULL check
  powerpc/powernv: Fix vma page prot flags in opal-prd driver