[PATCH] NVMe: Add explicit block config dependency

[Christoph Hellwig]

On Mon, Oct 12, 2015 at 11:37:38AM -0600, Keith Busch wrote:
> The nvme driver was moved from drivers/block, losing our implicit
> dependency on CONFIG_BLOCK. This makes it an explicit driver dependency.
> 
> Reported-by: Jim Davis <jim.epost at gmail.com>
> Signed-off-by: Keith Busch <keith.busch at intel.com>

Oh, that explains the odd errors - I actually just got a similar one
from the buildbot and couldn't make sense of it.

Looks good,

Reviewed-by: Christoph Hellwig <hch at lst.de>