Move the v4l2 access to its own subdirectory.

configure.ac

@@ -6165,6 +6165,7 @@ AC_CONFIG_FILES([
   modules/access/mms/Makefile
   modules/access/cdda/Makefile
   modules/access/rtsp/Makefile
+  modules/access/v4l2/Makefile
   modules/access/vcd/Makefile
   modules/access/vcdx/Makefile
   modules/access/screen/Makefile

modules/access/Modules.am

@@ -14,7 +14,6 @@ SOURCES_dc1394 = dc1394.c
 SOURCES_access_fake = fake.c
 SOURCES_pvr = pvr.c videodev2.h
 SOURCES_v4l = v4l.c videodev_mjpeg.h
-SOURCES_v4l2 = v4l2.c
 SOURCES_cdda = \
         cdda.c \
         vcd/cdrom.c \

modules/access/v4l2/Modules.am

+SOURCES_v4l2 = v4l2.c