ASoC: Intel: Skylake: Select first entry for singular pipe config arrays

When pipe does not expose multiple configuration options, always select
the first entry without searching for matching one.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Tested-by: Lukasz Majczak <lma@semihalf.com>
Link: https://lore.kernel.org/r/20210818075742.1515155-12-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>