dt: bindings: net: add bindings to add WoW support on WCN6750

Add required bindings to support WoW (Wake on Wireless) on
WCN6750 which is based on ath11k driver.

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220902112520.24804-2-quic_mpubbise@quicinc.com

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

@@ -66,6 +66,18 @@ properties:
     required:
       - iommus
 
+  qcom,smem-states:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: State bits used by the AP to signal the WLAN Q6.
+    items:
+      - description: Signal bits used to enable/disable low power mode
+                     on WCN6750 in the case of WoW (Wake on Wireless).
+
+  qcom,smem-state-names:
+    description: The names of the state bits used for SMP2P output.
+    items:
+      - const: wlan-smp2p-out
+
 required:
   - compatible
   - reg
@@ -448,6 +460,8 @@ examples:
                      <GIC_SPI 799 IRQ_TYPE_EDGE_RISING>;
         qcom,rproc = <&remoteproc_wpss>;
         memory-region = <&wlan_fw_mem>, <&wlan_ce_mem>;
+        qcom,smem-states = <&wlan_smp2p_out 0>;
+        qcom,smem-state-names = "wlan-smp2p-out";
         wifi-firmware {
                 iommus = <&apps_smmu 0x1c02 0x1>;
         };