staging: greybus: audio: delete unnecessary parentheses

Eliminate unneeded parentheses around the right hand side of an assignment.
Coccinelle semantic patch used:

@@
expression e1, e2;
identifier v;
@@

(
 v = (e1 == e2)
|
 v = (e1 != e2)
|
 v = (e1 <= e2)
|
 v = (e1 >= e2)
|
 v =
- (
	e1
- )
)
Signed-off-by: NEva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/audio_topology.c

@@ -459,7 +459,7 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,
 
 	max = info->value.integer.max;
 	mask = (1 << fls(max)) - 1;
-	val = (ucontrol->value.integer.value[0] & mask);
+	val = ucontrol->value.integer.value[0] & mask;
 	connect = !!val;
 
 	/* update ucontrol */