[PATCH] v4l: hybrid dvb: fix warnings with -Wundef

This patch adds a missing #ifdef to saa7134-dvb.c (thanks to Mauro Carvalho
Chehab) and changes #if to #ifdef in both files.

Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>