packaging: packaging: rename /etc/ovirt-engine-dwh/engine-dwh.conf.d->/etc/ovirt-engine-dwh/ovirt-engine-dwhd.conf.d

the conf.d is of service and should called the same.
we keep /etc/ovirt-engine/ovirt-engine-dwh as it going to be obsoleted
by the conf.d and simply removed.

Change-Id: I7dd02f65532336152f81f73104112e0a8e5333a7
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>