ASoC: Route AIF and CPU DAI widgets for HFP

DAIs are routed to the AIF widgets during the probe to
complete capture/playback path. The probe is missing for the
HFP DAI link, so add it to enable routing.

Change-Id: Id15490b85dc2071e2e4428536f2320eb6b4d9178
Signed-off-by: Satya Krishna Pindiproli <satyak@codeaurora.org>