Pull xtensa updates from Max Filippov:

 - reorganize exception vectors placement

 - small cleanups (drop unused functions/headers/defconfig entries,
   spelling fixes)

* tag 'xtensa-20200206' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: ISS: improve simcall assembly
  xtensa: reorganize vectors placement
  xtensa: separate SMP and XIP support
  xtensa: move fast exception handlers close to vectors
  arch/xtensa: fix Kconfig typos for HAVE_SMP
  xtensa: clean up optional XCHAL_* definitions
  xtensa: drop unused function fast_coprocessor_double
  xtensa: drop empty platform_* functions from platforms
  xtensa: clean up platform headers
  xtensa: drop set_except_vector declaration
  xtensa: configs: Cleanup old Kconfig IO scheduler options