dr_86: rename dvbpsi_caption_service_s::i_ISO_639_language_code to i_iso_639_code

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
dr_a1: rename dvbpsi_service_location_element_s::i_ISO_639_language_code to i_iso_639_code

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
dr_a1: fix capitalization

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
desc: display service_location::stream_type in hex

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>