dt-bindings: mailbox: qcom-ipcc: simplify the example

Consumer examples in the bindings of resource providers are trivial,
useless and duplicating code.  Additionally the incomplete qcom,smp2p
example triggers DT schema warnings.

Cleanup the example by removing the consumer part and fixing the
indentation to DT schema convention.
Reported-by: NRob Herring <robh@kernel.org>
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>

Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml

@@ -61,23 +61,14 @@ additionalProperties: false
 
 examples:
   - |
-        #include <dt-bindings/interrupt-controller/arm-gic.h>
-        #include <dt-bindings/mailbox/qcom-ipcc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/mailbox/qcom-ipcc.h>
 
-        mailbox@408000 {
-                compatible = "qcom,sm8250-ipcc", "qcom,ipcc";
-                reg = <0x408000 0x1000>;
-                interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>;
-                interrupt-controller;
-                #interrupt-cells = <3>;
-                #mbox-cells = <2>;
-        };
-
-        smp2p-modem {
-                compatible = "qcom,smp2p";
-                interrupts-extended = <&ipcc_mproc IPCC_CLIENT_MPSS
-                                IPCC_MPROC_SIGNAL_SMP2P IRQ_TYPE_EDGE_RISING>;
-                mboxes = <&ipcc_mproc IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_SMP2P>;
-
-                /* Other SMP2P fields */
-        };
+    mailbox@408000 {
+        compatible = "qcom,sm8250-ipcc", "qcom,ipcc";
+        reg = <0x408000 0x1000>;
+        interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #interrupt-cells = <3>;
+        #mbox-cells = <2>;
+    };