dt: bindings: net: update compatible for ath11k

Add IPQ6018 wireless driver support,
its based on ath11k driver.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/010101746cb6751a-ca300933-1174-4534-a01b-b1dbf1c1f305-000000@us-west-2.amazonses.com

Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml

@@ -17,7 +17,9 @@ description: |
 
 properties:
   compatible:
-    const: qcom,ipq8074-wifi
+    enum:
+      - qcom,ipq8074-wifi
+      - qcom,ipq6018-wifi
 
   reg:
     maxItems: 1