gst-plugins: move 'inherit gobject-introspection' to recipes supporting GI

Now that whitelisting for unknown configure options was removed in
gobject-introspection.bbclass gstreamer1.0-plugins-ugly/-good start complaining

| ERROR: gstreamer1.0-plugins-ugly-1.14.4-r0 do_configure: QA Issue: gstreamer1.0-plugins-ugly: configure was passed unrecognised options: --enable-introspection [unknown-configure-option]
| ERROR: gstreamer1.0-plugins-good-1.14.4-r0 do_configure: QA Issue: gstreamer1.0-plugins-good: configure was passed unrecognised options: --enable-introspection [unknown-configure-option]

So let only those gst-plugin recipes inherit gobject-introspection whose sources
support GI.

(From OE-Core rev: b6138d28f750f4306bc8b9c9baa047d9971dcb17)

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_1.14.4.bb

@@ -20,7 +20,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=73a5855a8119deb017f5f13cf327095d \
 
 DEPENDS += "gstreamer1.0-plugins-base"
 
-inherit gettext bluetooth
+inherit gettext bluetooth gobject-introspection
 
 PACKAGECONFIG ??= " \
     ${GSTREAMER_ORC} \

meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base_1.14.4.bb

@@ -28,7 +28,7 @@ S = "${WORKDIR}/gst-plugins-base-${PV}"
 
 DEPENDS += "iso-codes util-linux"
 
-inherit gettext
+inherit gettext gobject-introspection
 
 PACKAGES_DYNAMIC =+ "^libgst.*"
 

meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins.inc

@@ -7,7 +7,7 @@ DEPENDS = "gstreamer1.0 glib-2.0-native"
 
 SRC_URI_append = " file://gtk-doc-tweaks.patch"
 
-inherit autotools pkgconfig upstream-version-is-even gobject-introspection gtk-doc
+inherit autotools pkgconfig upstream-version-is-even gtk-doc
 
 acpaths = "-I ${S}/common/m4 -I ${S}/m4"