ASoC: sigmadsp: uninitialized variable in sigmadsp_activate_ctrl()

The "changed" variable should be set to false at the start.

Fixes: a35daac7 ('ASoC: sigmadsp: Add support for fw v2')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>

sound/soc/codecs/sigmadsp.c

@@ -661,7 +661,8 @@ static void sigmadsp_activate_ctrl(struct sigmadsp *sigmadsp,
 	struct snd_card *card = sigmadsp->component->card->snd_card;
 	struct snd_kcontrol_volatile *vd;
 	struct snd_ctl_elem_id id;
-	bool active, changed;
+	bool active;
+	bool changed = false;
 
 	active = sigmadsp_samplerate_valid(ctrl->samplerates, samplerate_mask);