beaglebone: add DT for BeagleBone Black

The devicetree data for BeagleBone Black is the am335x–boneblack.dts file
(includes "am33xx.dtsi" and "am335x-bone-common.dtsi")

BeagleBone White uses the am335x-bone.dts file.

Signed-off-by: Marcelo Gutiérrez <kuyurix@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
vlc: explicitly disable opencv support

vlc can use opencv in video filters, but it requires a couple of
features enabled in opencv; so, simply force disabling opencv support.

Note that vlc does includes the legacy opencv/cv.h header, which pulls a
number of opencv's features (core, video, imgproc, ...).

Fixes:
  http://autobuild.buildroot.org/results/39c/39c77ffb5a5599d0b09422433c747b2bac185c4f/
  http://autobuild.buildroot.org/results/a79/a79b055da09e4d8ede263251df8461bc8a64569a/

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Merge remote-tracking branch 'mirror/master'