[media] DocBook: Rename ioctl xml files

for the xml files describing ioctls, use the same nomenclature
as on V4L2: the ioctl name, in lower case, using - instead of _.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/Documentation/DocBook/media/dvb/frontend_get_info.xml b/Documentation/DocBook/media/dvb/fe-get-info.xml
similarity index 100%
rename from Documentation/DocBook/media/dvb/frontend_get_info.xml
rename to Documentation/DocBook/media/dvb/fe-get-info.xml

diff --git a/Documentation/DocBook/media/dvb/frontend_read_status.xml b/Documentation/DocBook/media/dvb/fe-read-status.xml
similarity index 100%
rename from Documentation/DocBook/media/dvb/frontend_read_status.xml
rename to Documentation/DocBook/media/dvb/fe-read-status.xml

diff --cc Documentation/DocBook/media/dvb/frontend.xml
Simple merge