ASoC: SOF: Kconfig: fix typo of SND_SOC_SOF_PCI

ASoC: SOF: Kconfig: fix typo of SND_SOC_SOF_PCI

It should be 'endif ## SND_SOC_SOF_PCI' instead of
'endif ## SND_SOC_SOF_INTEL_PCI'

Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20210409221308.1544000-1-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>