Merge tag 's390-6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Heiko Carstens:

 - Split kernel large page mappings into 4k mappings in case debug
   pagealloc is enabled again. This got accidentally removed by commit
   bb1520d5 ("s390/mm: start kernel with DAT enabled")

 - Fix error handling in KVM's sthyi handling

 - Add missing include to s390's uapi ptrace.h

 - Update defconfigs

* tag 's390-6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ptrace: add missing linux/const.h include
  KVM: s390: fix sthyi error handling
  s390: update defconfigs
  s390/vmem: split pages when debug pagealloc is enabled