ASoC: acpi: fix: continue searching when machine is ignored

ASoC: acpi: fix: continue searching when machine is ignored

[ Upstream commit a3e620f8422832afd832ad5e20aa97d0c72bada8 ]

The machine_quirk may return NULL which means the acpi entries should be
skipped and search for next matched entry is needed, here add return
check here and continue for NULL case.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>