ASoC: Intel: remove select on non-existing SND_SOC_INTEL_COMMON

SND_SST_ATOM_HIFI2_PLATFORM_PCI select SND_SOC_INTEL_COMMON which do not
exists anymore.
So remove this select.

Fixes: c6059879 ("ASoC: Intel: Fix Kconfig with top-level selector")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>