main/gst-plugins-base: add secfixes

main/gst-plugins-base/APKBUILD

@@ -15,6 +15,10 @@ makedepends="alsa-lib-dev cdparanoia-dev expat-dev glib-dev
 source="https://gstreamer.freedesktop.org/src/gst-plugins-base/$pkgname-$pkgver.tar.xz"
 ldpath="/usr/lib/gstreamer-1.0"
 
+# secfixes:
+#   1.16.0-r0:
+#     - CVE-2019-9928
+
 # sporadic testsuite failures on various archs, testsuite fails with network
 # restricted too
 options="!check"