dt-bindings: iio: adc: qcom,spmi-vadc: extend example

Cleanup existing example (generic node name for spmi, use 4-space
indentation) and add example for ADCv7 copied from
Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml.
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221027143411.277980-2-krzysztof.kozlowski@linaro.orgSigned-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml

@@ -236,7 +236,7 @@ additionalProperties: false
 
 examples:
   - |
-    spmi_bus {
+    spmi {
         #address-cells = <1>;
         #size-cells = <0>;
         /* VADC node */
@@ -275,3 +275,33 @@ examples:
             };
         };
     };
+
+  - |
+    #include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
+    #include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    spmi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        adc@3100 {
+            reg = <0x3100>;
+            compatible = "qcom,spmi-adc7";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            #io-channel-cells = <1>;
+
+            /* Other properties are omitted */
+            xo-therm@44 {
+                reg = <PMK8350_ADC7_AMUX_THM1_100K_PU>;
+                qcom,ratiometric;
+                qcom,hw-settle-time = <200>;
+            };
+
+            conn-therm@47 {
+                reg = <PM8350_ADC7_AMUX_THM4_100K_PU>;
+                qcom,ratiometric;
+                qcom,hw-settle-time = <200>;
+            };
+        };
+    };