ALSA: bebob: Fix bit flag quirk constants

ALSA: bebob: Fix bit flag quirk constants

The quirking bit-flags are currently set as contiguous integer enum values
and so currently SND_BEBOB_QUIRK_INITIAL_DISCONTINUOUS_DBC is zero and so
he quirking never getting set or tested correctly for this quirk. Fix this
by setting the quirking constants as shifted bit values.

Addresses-Coverity: ("Bitwise-and with zero")
Fixes: 93cd12d6e88a ("ALSA: bebob: code refactoring for model-dependent quirks")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210615142048.59900-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>