ASoC: Intel: Skylake: Update pcm capability

This patch adds pcm capability to support 16/8k rates and 32 bit formats

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>