repo: Use imx-8 dunfell branch

Commit might have been relocated, let's use imx's default dunfell branch in main
I'll update the pinned SHA1 in dunfell branch

Relate-to: https://booting.oniroproject.org/rzr/meta-oniro-blueprint-flutter/-/issues/5


Signed-off-by: Philippe Coval <philippe.coval.ext@huawei.com>

default.xml

@@ -49,7 +49,7 @@ SPDX-FileCopyrightText: Huawei Inc.
 	<project name="meta-seco-intel" remote="seco-intel" revision="baf4cd3237bdf4f4999b7d44c6992dbcab93d5e3" path="meta-seco-intel" />
 
 	<project name="meta-freescale" remote="yocto" revision="11170950b155168ec414bbde48e3a4427fcac4bd" path="meta-freescale" />
-	<project name="meta-seco-imx" remote="seco-imx" revision="0e18a0c78ab98c48f5289b316a9c69b03385d5e0" path="meta-seco-imx" />
+	<project name="meta-seco-imx" remote="seco-imx" revision="dunfell" path="meta-seco-imx" />
 	<project name="meta-av96" revision="a4b2b45efcbad1882227eac54b5023ff6b736b10" path="meta-av96" />
 	<project name="meta-python-mixin" revision="7bda3c1e5d6876375a8bf865ed9fcce2622c1715" path="meta-python-mixin" />
 	<project name="meta-raspberrypi" remote="yocto" revision="934064a01903b2ba9a82be93b3f0efdb4543a0e8" path="meta-raspberrypi" />