Squashed 'dts/upstream/' content from commit aaba2d45dc2a

git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/arm/axxia.yaml b/Bindings/arm/axxia.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/axxia.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axxia AXM55xx
+
+maintainers:
+  - Anders Berg <anders.berg@lsi.com>
+
+properties:
+  $nodename:
+    const: "/"
+  compatible:
+    description: LSI AXM5516 Validation board (Amarillo)
+    items:
+      - const: lsi,axm5516-amarillo
+      - const: lsi,axm5516
+
+additionalProperties: true
+
+...