dt-bindings: mfd: qcom,spmi-pmic: Drop unused labels from examples

There's not much point in having unused labels in the binding example,
so drop them.

This patch was originally motivated by ea25d61b ("arm64: dts: qcom:
Use plural _gpios node label for PMIC gpios") updating all dts files to
use the plural _gpios label instead of the singular _gpio as label but
this example wasn't updated. But since we should just drop the label
alltogether, do that.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231002-pm7250b-gpio-fixup-v2-1-debb8b599989@fairphone.comSigned-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml

@@ -239,13 +239,13 @@ examples:
         interrupt-controller;
         #interrupt-cells = <4>;
 
-        pmi8998_lsid0: pmic@2 {
+        pmic@2 {
             compatible = "qcom,pmi8998", "qcom,spmi-pmic";
             reg = <0x2 SPMI_USID>;
             #address-cells = <1>;
             #size-cells = <0>;
 
-            pmi8998_gpio: gpio@c000 {
+            gpio@c000 {
                 compatible = "qcom,pmi8998-gpio", "qcom,spmi-gpio";
                 reg = <0xc000>;
                 gpio-controller;
@@ -330,7 +330,7 @@ examples:
             };
         };
 
-        pm6150_gpio: gpio@c000 {
+        gpio@c000 {
             compatible = "qcom,pm6150-gpio", "qcom,spmi-gpio";
             reg = <0xc000>;
             gpio-controller;