sound fixes for 4.11-rc4 This contains the collection of small fixes for 4.11 that were pending during my vacation: - A few HD-audio quirks (more Dell headset support, docking station support on HP laptops), - A regression fix for the previous ctxfi DMA mask fix, - A correction of the new CONFIG_SND_X86 menu entry, and - A fix for the races in ALSA sequencer core spotted by syzkaller.