dt-bindings: Another round of adding missing 'additionalProperties/unevalutatedProperties'

Another round of wack-a-mole. The json-schema default is additional
unknown properties are allowed, but for DT all properties should be
defined.

Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
index 2cd8590..1ae9454 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
@@ -186,6 +186,8 @@
   - clock-names
   - ti,otap-del-sel-legacy
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>