sound fixes for 4.16-rc6 A series of small fixes in ASoC, HD-audio and core stuff: - A UAF fix in ALSA PCM core - Yet more hardening for ALSA sequencer - A regression fix for the previous HD-audio power_save option change - Various ASoC codec fixes (sgtl5000, rt5651, hdmi-codec, wm_adsp) - Minor ASoC platform fixes (AMD ACP, sun4i)