That way we can get rid of the direct dependency on CONFIG_BLOCK.
Fixes: d475a507457b ("ubifs: Add skeleton for fscrypto")
Reported-by: Arnd Bergmann
Reported-by: Randy Dunlap
Reviewed-by: Eric Biggers
Reviewed-by: Christoph Hellwig
Reviewed-by: David Gstir
Signed-off-by: Richard Weinberger
Signed-off-by: Theodore Ts'o