ALSA: 6fire: fix control and bulk message timeouts

USB control and bulk message timeouts are specified in milliseconds and
should specifically not vary with CONFIG_HZ.

Fixes: c6d43ba8 ("ALSA: usb/6fire - Driver for TerraTec DMX 6Fire USB")
Cc: stable@vger.kernel.org      # 2.6.39
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025121142.6531-2-johan@kernel.org


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