Depend on libgdk-pixbuf2.0-dev

If not installed .install will explode due to missing libgstgdkpixbuf.so.
Usually this is brought in by gtk3 that for mysterious reasons breaks the
build in other ways and is removed.

Change-Id: I652f72f0204fff6446171f037683f61fd6b3fec5
diff --git a/debian/build-deps b/debian/build-deps
index e359129..a680c36 100644
--- a/debian/build-deps
+++ b/debian/build-deps
@@ -35,3 +35,4 @@
 libbz2-dev
 libjack-jackd2-dev
 libvpx-dev (>= 1.3.0)
+libgdk-pixbuf2.0-dev
diff --git a/debian/control b/debian/control
index ce005c4..de86721 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@
 Section: libs
 Priority: optional
 Maintainer: AIY Projects <support-aiyprojects@google.com>
-Build-Depends: libgstreamer1.0-dev (>= 1.12.0),  libraw1394-dev (>= 2.0.0) [linux-any] , libiec61883-dev (>= 1.0.0) [linux-any] , libavc1394-dev [linux-any] , libv4l-dev [linux-any] , libgudev-1.0-dev (>= 143) [linux-any], libgstreamer-plugins-base1.0-dev (>= 1.12.0), autotools-dev, dh-autoreconf, automake (>= 1.14), autoconf (>= 2.69), libtool (>= 2.2.6), autopoint (>= 0.17), cdbs (>= 0.4.93), debhelper (>= 9), dpkg-dev (>= 1.15.1), pkg-config (>= 0.11.0), gtk-doc-tools (>= 1.12), libglib2.0-dev (>= 2.40), liborc-0.4-dev (>= 1:0.4.17), libcairo2-dev (>= 1.10.0), libcaca-dev, libspeex-dev (>= 1.1.6), libpng-dev, libshout3-dev, libjpeg-dev, libaa1-dev (>= 1.4p5), libflac-dev (>= 1.1.4), libdv4-dev | libdv-dev, libxdamage-dev, libxext-dev, libxfixes-dev, libxv-dev, libtag1-dev (>= 1.5), libwavpack-dev (>= 4.60), gstreamer1.0-plugins-base (>= 1.12.0), libsoup2.4-dev (>= 2.48), libpulse-dev (>= 2.0), libbz2-dev, libjack-jackd2-dev, libvpx-dev (>= 1.3.0)
+Build-Depends: libgstreamer1.0-dev (>= 1.12.0),  libraw1394-dev (>= 2.0.0) [linux-any] , libiec61883-dev (>= 1.0.0) [linux-any] , libavc1394-dev [linux-any] , libv4l-dev [linux-any] , libgudev-1.0-dev (>= 143) [linux-any], libgstreamer-plugins-base1.0-dev (>= 1.12.0), autotools-dev, dh-autoreconf, automake (>= 1.14), autoconf (>= 2.69), libtool (>= 2.2.6), autopoint (>= 0.17), cdbs (>= 0.4.93), debhelper (>= 9), dpkg-dev (>= 1.15.1), pkg-config (>= 0.11.0), gtk-doc-tools (>= 1.12), libglib2.0-dev (>= 2.40), liborc-0.4-dev (>= 1:0.4.17), libcairo2-dev (>= 1.10.0), libcaca-dev, libspeex-dev (>= 1.1.6), libpng-dev, libshout3-dev, libjpeg-dev, libaa1-dev (>= 1.4p5), libflac-dev (>= 1.1.4), libdv4-dev | libdv-dev, libxdamage-dev, libxext-dev, libxfixes-dev, libxv-dev, libtag1-dev (>= 1.5), libwavpack-dev (>= 4.60), gstreamer1.0-plugins-base (>= 1.12.0), libsoup2.4-dev (>= 2.48), libpulse-dev (>= 2.0), libbz2-dev, libjack-jackd2-dev, libvpx-dev (>= 1.3.0), libgdk-pixbuf2.0-dev
 Standards-Version: 3.9.3
 Homepage: http://gstreamer.freedesktop.org/modules/gst-plugins-good.html