Pull UBI fixes from Richard Weinberger:
"This contains fixes for a regression introduced in rc1"
* tag 'upstream-4.7-rc4' of git://git.infradead.org/linux-ubifs:
ubi: Don't bypass ->getattr()
Revert "mtd: switch open_mtd_by_chdev() to use of vfs_stat()"
Revert "mtd: switch ubi_open_volume_path() to vfs_stat()"