bus: fsl-mc: dpio: add global dpaa2 definitions

Create header for global dpaa2 definitions.  Add definitions
for dequeue results.

Signed-off-by: Roy Pledge <Roy.Pledge@nxp.com>
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>