V4L/DVB (6789): tuner: use char *name instead of 128 byte fixed array for demod info

Don't waste 128 bytes of memory for a name that might not actually need it.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/tuner-driver.h

@@ -29,7 +29,7 @@
 extern unsigned const int tuner_count;
 
 struct analog_demod_info {
-	char name[128];
+	char *name;
 };
 
 struct analog_tuner_ops {