ALSA: scarlett2: Add support for Clarett 8Pre USB

The Clarett 8Pre USB works the same as the Clarett+ 8Pre, only the USB
ID is different.

Tested-by: Philippe Perrot <philippe@perrot-net.fr>
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/e59f47b29e2037f031b56bde10474c6e96e31ba5.1694705811.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>