Pull pstore updates from Kees Cook:
 "pstore improvements:

   - refactor init to happen as early as possible again (Joel Fernandes)

   - improve resource reservation names"

* tag 'pstore-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/ram: Clarify resource reservation labels
  pstore: Refactor compression initialization
  pstore: Allocate compression during late_initcall()
  pstore: Centralize init/exit routines