kas: Add configs for i.MX6UL and i.MX8MP hardware

kas/inc/imx.yml

+# Copyright (C) 2022 Kontron Electronics GmbH
+# SPDX-License-Identifier: MIT
+
+header:
+  version: 12
+  includes:
+    - kas/inc/common.yml
+
+repos:
+  # meta-ked-bsp:
+  #   layers:
+  #     layers/meta-ked-stm32mp: excluded
+  # meta-st-stm32mp:
+  #   layers:
+  #     .: excluded
+  meta-ked-bsp:
+    layers:
+      layers/meta-ked-imx:
+  meta-freescale:
+    url: https://git.yoctoproject.org/git/meta-freescale
+    branch: kirkstone
+    path: layers/meta-freescale
+
+
+local_conf_header:
+  accept_eula:
+    ACCEPT_FSL_EULA = "1"

kas/ked-mx6ul.yml

+# Copyright (C) 2023 Kontron Electronics GmbH
+# SPDX-License-Identifier: MIT
+
+header:
+  version: 12
+  includes:
+    - kas/inc/imx.yml
+
+machine: kontron-mx6ul
+target:
+  - virtual/bootloader

kas/ked-mx8mp.yml

+# Copyright (C) 2023 Kontron Electronics GmbH
+# SPDX-License-Identifier: MIT
+
+header:
+  version: 12
+  includes:
+    - kas/inc/imx.yml
+
+machine: kontron-mx8mp
+target:
+  - virtual/bootloader