gst1-plugins-bad: add install to staging directory

gst1-imx package links against libgstphotography for its imxv4l2src
plugin.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gstreamer1/gst1-plugins-bad/gst1-plugins-bad.mk

@@ -7,6 +7,7 @@
 GST1_PLUGINS_BAD_VERSION = 1.6.3
 GST1_PLUGINS_BAD_SOURCE = gst-plugins-bad-$(GST1_PLUGINS_BAD_VERSION).tar.xz
 GST1_PLUGINS_BAD_SITE = http://gstreamer.freedesktop.org/src/gst-plugins-bad
+GST1_PLUGINS_BAD_INSTALL_STAGING = YES
 GST1_PLUGINS_BAD_LICENSE_FILES = COPYING COPYING.LIB
 # Unknown and GPL licensed plugins will append to GST1_PLUGINS_BAD_LICENSE if
 # enabled.