V4L/DVB (9180): S2API: Added support for DTV_CODE_RATE_HP/LP

Reports from users that using the new API for tuning DTV was failing,
and the cache was missing some essential items.

Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h
index 3d4fab4..6675edf 100644
--- a/include/linux/dvb/frontend.h
+++ b/include/linux/dvb/frontend.h
@@ -268,8 +268,11 @@
 #define DTV_DELIVERY_SYSTEM	17
 
 #define DTV_API_VERSION				35
+#define DTV_API_VERSION				35
+#define DTV_CODE_RATE_HP			36
+#define DTV_CODE_RATE_LP			37
 
-#define DTV_MAX_COMMAND				DTV_API_VERSION
+#define DTV_MAX_COMMAND				DTV_CODE_RATE_LP
 
 typedef enum fe_pilot {
 	PILOT_ON,