ASoC: dapm: Avoid static route b/w cpu and codec dai

Currently ASoC core creates a static route b/w
playback/capture widgets of cpu and codec dai
if they are part of the same dai-link. However
this will cause codec path to get powered up
followed by the backend dai start during device
switch use-case where the front-end is not closed,
leading to audio playback failure if either bit-width
or sample rate is different.

CRs-Fixed: 1029118
Change-Id: I180515f2ad55d1f446ad7eb1ad0bd71809db94bd
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
Signed-off-by: Meng Wang <mwang@codeaurora.org>