[media] increment DVB API to version 5.6 for ATSC-MH frontend control

increment the DVB API version to 5.6 to signify support for
controlling an ATSC-MH frontend.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

include/linux/dvb/version.h

@@ -24,6 +24,6 @@
 #define _DVBVERSION_H_
 
 #define DVB_API_VERSION 5
-#define DVB_API_VERSION_MINOR 5
+#define DVB_API_VERSION_MINOR 6
 
 #endif /*_DVBVERSION_H_*/