ASoC: soc-acpi-intel-ptl-match: add empty item to ptl_cs42l43_l3[]

An empty item is required to terminate the look up loop.

Fixes: ac5b4a2 ("ASoC: Intel: soc-acpi-intel-ptl-match: Add cs42l43 support")

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Naveen Manohar <naveen.m@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20250423055722.6920-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: bardliao

sound/soc/intel/common/soc-acpi-intel-ptl-match.c

@@ -431,7 +431,8 @@ static const struct snd_soc_acpi_link_adr ptl_cs42l43_l3[] = {
 		.mask = BIT(3),
 		.num_adr = ARRAY_SIZE(cs42l43_3_adr),
 		.adr_d = cs42l43_3_adr,
-	}
+	},
+	{}
 };
 
 static const struct snd_soc_acpi_link_adr ptl_rt722_only[] = {