ALSA: hda/tas2781: select CONFIG_CRC8 for SND_HDA_SCODEC_TAS2781_I2C

The crc8 function is used by the common fmwlib module, so this has
to be selected directly to avoid a link failure:

ERROR: modpost: "crc8" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined!

Fixes: 9fa6a693 ("ALSA: hda/tas2781: Remove tas2781_spi_fwlib.c and leverage SND_SOC_TAS2781_FMWLIB")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20250505052303.1812002-1-arnd@kernel.org


Signed-off-by: Takashi Iwai <tiwai@suse.de>