[PATCH v2] nvme: fix the definition of Admin doorbell buffer config support

[Keith Busch]

On Thu, Aug 31, 2017 at 03:55:49PM +0800, Changpeng Liu wrote:
> NVMe 1.3 specification defines the Optional Admin Command Support
> feature flags, bit 8 set to '1' then the controller supports the
> Doorbell Buffer Config command. Bit 7 is used for Virtualization
> Mangement command.
> 
> Signed-off-by: Changpeng Liu <changpeng.liu at intel.com>

Thanks for the fix. We also need this for 4.12+ stable.