The tvp5150 doesn't have just one pad. It has 3 ones:
	- IF input
	- Video output
	- VBI output

Fix it and use the macros for the pad indexes.
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>