Fix Dds switch issue for wifi and IWLAN scenarios

In wifi on case, internet requests are released and there are
no oustanding requests to process, so user triggered Dds switch will
be blocked. Add a dummy network request to force Dds switch.

If IWLAN is reported on non dds sub, move state machine to Attached
state, to process any on demand network requests possible over IWLAN

Change-Id: I38a917906808511705eedb7d39534781759296cb
CRs-Fixed: 993272