dt-bindings: soc: qcom: fix IPA binding

The definitions for the "qcom,smem-states" and "qcom,smem-state-names"
properties need to list their "$ref" under an "allOf" keyword.

In addition, fix two problems in the example at the end:
  - Use #include for header files that define needed symbolic values
  - Terminate the line that includes the "ipa-shared" register space
    name with a comma rather than a semicolon

Finally, update some white space in the example for better alignment.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/qcom,ipa.yaml

@@ -87,14 +87,16 @@ properties:
       - const: config
 
   qcom,smem-states:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/phandle-array
     description: State bits used in by the AP to signal the modem.
     items:
     - description: Whether the "ipa-clock-enabled" state bit is valid
     - description: Whether the IPA clock is enabled (if valid)
 
   qcom,smem-state-names:
-    $ref: /schemas/types.yaml#/definitions/string-array
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/string-array
     description: The names of the state bits used for SMP2P output
     items:
       - const: ipa-clock-enabled-valid
@@ -139,6 +141,10 @@ oneOf:
 
 examples:
   - |
+        #include <dt-bindings/interrupt-controller/irq.h>
+        #include <dt-bindings/clock/qcom,rpmh.h>
+        #include <dt-bindings/interconnect/qcom,sdm845.h>
+
         smp2p-mpss {
                 compatible = "qcom,smp2p";
                 ipa_smp2p_out: ipa-ap-to-modem {
@@ -162,7 +168,7 @@ examples:
                         <0 0x1e47000 0 0x2000>,
                         <0 0x1e04000 0 0x2c000>;
                 reg-names = "ipa-reg",
-                                "ipa-shared";
+                            "ipa-shared",
                             "gsi";
 
                 interrupts-extended = <&intc 0 311 IRQ_TYPE_EDGE_RISING>,