Merge tag 'nds32-for-linus-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

Pull nds32 updates from Greentime Hu:

 - code clean up

 - add a nds32 maintainer

* tag 'nds32-for-linus-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  MAINTAINERS: add nds32 maintainer
  nds32: Move static keyword to the front of declaration
  nds32: Fix typo in Kconfig.cpu
  nds32: remove unneeded clean-files for DTB