ALSA: Remove bitwise from snd_pcm_hw_param_t

We have some arithmetic operations against snd_pcm_hw_param_t, thus
bitwise isn't correct for it.  Better to remove the flag to shut up
sparse warnings.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>