s390-ccw: Fix alignment for CCW1

s390-ccw: Fix alignment for CCW1

The commit 198c0d1f9df8c4 s390x/css: check ccw address validity
exposes an alignment issue in ccw bios.

According to PoP the CCW must be doubleword aligned. Let's fix
this in the bios.

Cc: [email protected]
Signed-off-by: Farhan Ali <[email protected]>
Reviewed-by: Halil Pasic <[email protected]>
Reviewed-by: Eric Farman <[email protected]>
Acked-by: Christian Borntraeger <[email protected]>
Message-Id: <3ed8b810b6592daee6a775037ce21f850e40647d.1503667215[email protected]>
Signed-off-by: Cornelia Huck <[email protected]>