[media] af9013: use true/false for boolean vars

Instead of using 0 or 1 for boolean, use the true/false
defines.

Also, instead of testing foo == false, just use the
simplified notation if(!foo).
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/dvb-frontends/rtl2832.c

@@ -936,7 +936,7 @@ static void rtl2832_i2c_gate_work(struct work_struct *work)
 	if (ret != 1)
 		goto err;
 
-	priv->i2c_gate_state = 0;
+	priv->i2c_gate_state = false;
 
 	return;
 err:

drivers/media/dvb-frontends/rtl2832_sdr.c

@@ -1432,7 +1432,7 @@ struct dvb_frontend *rtl2832_sdr_attach(struct dvb_frontend *fe,
 	s->pixelformat = formats[0].pixelformat;
 	s->buffersize = formats[0].buffersize;
 	s->num_formats = NUM_FORMATS;
-	if (rtl2832_sdr_emulated_fmt == false)
+	if (!rtl2832_sdr_emulated_fmt)
 		s->num_formats -= 1;
 
 	mutex_init(&s->v4l2_lock);