Merge branch 'for-next/asm' into for-next/core

* for-next/asm:
  arm64: uaccess: remove unnecessary earlyclobber
  arm64: uaccess: permit put_{user,kernel} to use zero register
  arm64: uaccess: permit __smp_store_release() to use zero register
  arm64: atomics: lse: improve cmpxchg implementation