ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item #6817

Job	Run time
GCC build arm64	17m 16s
GCC build arm64 allmodconfig	1m 57s
Clang build x86_64	4m 6s
GCC static -fanalyzer	4m 43s
GCC build X86_64	16m 58s
GCC build i386	15m 6s
GCC build X86_64 with W=1	2m 58s
GCC build X86_64 with W=1 allmodconfig	1m 59s
Sparse check	3m 8s
	1h 8m 11s

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