MAINTAINERS: copy linux-arm-msm for sound/qcom changes

MAINTAINERS: copy linux-arm-msm for sound/qcom changes

Not having linux-arm-msm@ in cc for audio-related changes for Qualcomm
platforms means that interested parties can easily miss the patches. Add
corresponding L: entry so that linux-arm-msm ML gets CC'ed for audio
patches too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://msgid.link/r/20240531-asoc-qcom-cc-lamsm-v1-1-f026ad618496@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>