[media] Rename media/dvb as media/pci

The remaining dvb drivers are pci, so rename them to match the
bus.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/DocBook/media/dvb/kdapi.xml b/Documentation/DocBook/media/dvb/kdapi.xml
index 6c67481..6c11ec5 100644
--- a/Documentation/DocBook/media/dvb/kdapi.xml
+++ b/Documentation/DocBook/media/dvb/kdapi.xml
@@ -2,7 +2,7 @@
 <para>The kernel demux API defines a driver-internal interface for registering low-level,
 hardware specific driver to a hardware independent demux layer. It is only of interest for
 DVB device driver writers. The header file for this API is named <emphasis role="tt">demux.h</emphasis> and located in
-<emphasis role="tt">drivers/media/dvb/dvb-core</emphasis>.
+<emphasis role="tt">drivers/media/dvb-core</emphasis>.
 </para>
 <para>Maintainer note: This section must be reviewed. It is probably out of date.
 </para>