V4L/DVB (3932): Convert lnbp21 to a module

Convert lnbp21.h into a linux kernel module.
Fix up previous users to use it.
Convert dvb-ttusb-budget to use it.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index 5f976d5..1a6d7a3 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -2223,7 +2223,7 @@
 				av7110->fe->ops->tuner_ops.set_params = alps_bsbe1_tuner_set_params;
 				av7110->fe->tuner_priv = &av7110->i2c_adap;
 
-				if (lnbp21_init(av7110->fe, &av7110->i2c_adap, 0, 0)) {
+				if (lnbp21_attach(av7110->fe, &av7110->i2c_adap, 0, 0)) {
 					printk("dvb-ttpci: LNBP21 not found!\n");
 					if (av7110->fe->ops->release)
 						av7110->fe->ops->release(av7110->fe);