ALSA: usb-audio: Add quirks for MacroSilicon MS2100/MS2106 devices

[John Veness <john-linux@xxxxxxxxxxxxx>]

Hello,

Please can you consider my "ALSA: usb-audio: Add quirks for MacroSilicon 
MS2100/MS2106 devices" patch, with upstream commit ID 
6e2c9105e0b743c92a157389d40f00b81bdd09fe for inclusion in all -stable 
kernels. Apart from the device IDs, it is a copy of the similar existing 
patch for MS2109 devices, which is already present in -stable kernels.

John Veness