Merge tag 'gpio-v5.1-rc3-fixes-for-linus' of git:// into fixes

gpio fixes for v5.1-rc3

- fix for a potential NULL-pointer dereference in the aspeed driver
- revert of the commit using the new gpio_set_config() when setting
  debaunce and transitory state config as it caused a regression in
  the aspeed driver
- two fixes for gpio-mockup for debugfs problems introduced in the
  last merge window