gst-omx: bump version to 1.12.2

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

package/gstreamer1/gst-omx/gst-omx.hash

@@ -1,2 +1,2 @@
-# From https://gstreamer.freedesktop.org/src/gst-omx/gst-omx-1.12.1.tar.xz.sha256sum
-sha256 13faf0eb679c37a01f64c47f23018c2d894fa0ff1c3b98d4b1d1c69a7b3ca183  gst-omx-1.12.1.tar.xz
+From https://gstreamer.freedesktop.org/src/gst-omx/gst-omx-1.12.2.tar.xz.sha256sum
+sha256 1b22398f45a027e977d2b5309625ec91cdcaf0da8751cbc7f596d639a45ba298 gst-omx-1.12.2.tar.xz

package/gstreamer1/gst-omx/gst-omx.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GST_OMX_VERSION = 1.12.1
+GST_OMX_VERSION = 1.12.2
 GST_OMX_SOURCE = gst-omx-$(GST_OMX_VERSION).tar.xz
 GST_OMX_SITE = https://gstreamer.freedesktop.org/src/gst-omx