V4L/DVB (13522): valj5jf8007s/t: fix compile warnings

Trivial fix for these bogus compile warnings:

v4l/va1j5jf8007s.c: In function 'va1j5jf8007s_tune':
v4l/va1j5jf8007s.c:394: warning: 'lock' may be used uninitialized in this function
v4l/va1j5jf8007t.c: In function 'va1j5jf8007t_tune':
v4l/va1j5jf8007t.c:273: warning: 'lock' may be used uninitialized in this function
v4l/va1j5jf8007t.c:273: warning: 'retry' may be used uninitialized in this function

These variables are never used uninitialized, but the compiler couldn't
figure that out unfortunately.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/pt1/va1j5jf8007s.c

@@ -391,7 +391,7 @@ va1j5jf8007s_tune(struct dvb_frontend *fe,
 {
 	struct va1j5jf8007s_state *state;
 	int ret;
-	int lock;
+	int lock = 0;
 
 	state = fe->demodulator_priv;
 

drivers/media/dvb/pt1/va1j5jf8007t.c

@@ -270,7 +270,7 @@ va1j5jf8007t_tune(struct dvb_frontend *fe,
 {
 	struct va1j5jf8007t_state *state;
 	int ret;
-	int lock, retry;
+	int lock = 0, retry = 0;
 
 	state = fe->demodulator_priv;