dt-bindings: soc: fsl: cpm_qe: cpm1-scc-qmc: Fix example property name

The given example mentions the 'fsl,mode' property whereas the
correct property name, the one described, is 'fsl,operational-mode'.

Fix the example to use the correct property name.

Fixes: a9b12132 ("dt-bindings: soc: fsl: cpm_qe: Add QMC controller")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231011061437.64213-7-herve.codina@bootlin.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml

@@ -137,7 +137,7 @@ examples:
         channel@16 {
             /* Ch16 : First 4 even TS from all routed from TSA */
             reg = <16>;
-            fsl,mode = "transparent";
+            fsl,operational-mode = "transparent";
             fsl,reverse-data;
             fsl,tx-ts-mask = <0x00000000 0x000000aa>;
             fsl,rx-ts-mask = <0x00000000 0x000000aa>;
@@ -146,7 +146,7 @@ examples:
         channel@17 {
             /* Ch17 : First 4 odd TS from all routed from TSA */
             reg = <17>;
-            fsl,mode = "transparent";
+            fsl,operational-mode = "transparent";
             fsl,reverse-data;
             fsl,tx-ts-mask = <0x00000000 0x00000055>;
             fsl,rx-ts-mask = <0x00000000 0x00000055>;
@@ -155,7 +155,7 @@ examples:
         channel@19 {
             /* Ch19 : 8 TS (TS 8..15) from all routed from TSA */
             reg = <19>;
-            fsl,mode = "hdlc";
+            fsl,operational-mode = "hdlc";
             fsl,tx-ts-mask = <0x00000000 0x0000ff00>;
             fsl,rx-ts-mask = <0x00000000 0x0000ff00>;
         };