gst1-libav: bump version to 1.12.2

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gstreamer1/gst1-libav/gst1-libav.hash

@@ -1,2 +1,2 @@
-# From https://gstreamer.freedesktop.org/src/gst-libav/gst-libav-1.12.1.tar.xz.sha256sum
-sha256 55d7823fdf63195de991adfef32db4b8a8bef3cafa46115a951e590dc18a5077  gst-libav-1.12.1.tar.xz
+From https://gstreamer.freedesktop.org/src/gst-libav/gst-libav-1.12.2.tar.xz.sha256sum
+sha256 5bb735b9bb218b652ae4071ea6f6be8eaae55e9d3233aec2f36b882a27542db3 gst-libav-1.12.2.tar.xz

package/gstreamer1/gst1-libav/gst1-libav.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GST1_LIBAV_VERSION = 1.12.1
+GST1_LIBAV_VERSION = 1.12.2
 GST1_LIBAV_SOURCE = gst-libav-$(GST1_LIBAV_VERSION).tar.xz
 GST1_LIBAV_SITE = https://gstreamer.freedesktop.org/src/gst-libav
 GST1_LIBAV_CONF_OPTS = --with-system-libav