dt-bindings: iio/adc: qcom,spmi-vadc: fix example node names

The VADC is a child of an SPMI PMIC, which in turn sits on an SPMI bus.

Fixes: 74e90346 ("dt-bindings: iio: adc: qcom,spmi-vadc: extend example")
Fixes: 5a471662 ("iio: adc: Convert the QCOM SPMI ADC bindings to .yaml format")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231130171628.12257-6-johan+linaro@kernel.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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

@@ -236,7 +236,7 @@ additionalProperties: false
 
 examples:
   - |
-    spmi {
+    pmic {
         #address-cells = <1>;
         #size-cells = <0>;
         /* VADC node */
@@ -281,7 +281,7 @@ examples:
     #include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>
     #include <dt-bindings/interrupt-controller/irq.h>
 
-    spmi {
+    pmic {
         #address-cells = <1>;
         #size-cells = <0>;
         adc@3100 {