V4L/DVB (3546): Fix Compilation after moving bttv code

- Missing a Makefile for bt8xx
- rds.h were at wrong directory, since it is a global header for an internal
  interface
- tda7432 and tda9875 were dependent from bttv.h
- bttv.h were holding i2c addresses

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/bt8xx/Makefile b/drivers/media/video/bt8xx/Makefile
new file mode 100644
index 0000000..94350f2
--- /dev/null
+++ b/drivers/media/video/bt8xx/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the video capture/playback device drivers.
+#
+
+bttv-objs      :=      bttv-driver.o bttv-cards.o bttv-if.o \
+		       bttv-risc.o bttv-vbi.o bttv-i2c.o bttv-gpio.o \
+		       bttv-input.o
+
+obj-$(CONFIG_VIDEO_BT848) += bttv.o
+
+EXTRA_CFLAGS += -I$(src)/..
+EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/dvb-core