Add the USB device ID to the scarlett2_device_info struct so that the
switch statement which finds the appropriate struct can be replaced
with a loop that looks through an array of pointers to those structs.
Suggested-by: NVladimir Sadovnikov <sadko4u@gmail.com>
Signed-off-by: NGeoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/474c408c29fb280a611e47e49e59ca2fb9810d27.1624294591.git.g@b4.vuSigned-off-by: NTakashi Iwai <tiwai@suse.de>