Merge branch 'asm-generic-compile-test' into asm-generic

This series from Masahiro Yamada cleans up some of the kernel headers
to build cleanly as part of the UAPI checks.

Link: https://lore.kernel.org/lkml/20220210021129.3386083-1-masahiroy@kernel.org/#t
* asm-generic-compile-test:
  reiserfs_xattr.h: add linux/reiserfs_xattr.h to UAPI compile-test coverage
  kexec.h: add linux/kexec.h to UAPI compile-test coverage
  fsmap.h: add linux/fsmap.h to UAPI compile-test coverage
  android/binder.h: add linux/android/binder(fs).h to UAPI compile-test coverage
  shmbuf.h: add asm/shmbuf.h to UAPI compile-test coverage
  signal.h: add linux/signal.h and asm/signal.h to UAPI compile-test coverage