dts:mc3: Reduce UCB1400 debounce to 50 ms

The debounce period of 100 ms makes the touch input to slow.
Reduce the time to 50 ms.

arch/arm64/boot/dts/seconorth/mc3.dtsi

@@ -1294,7 +1294,7 @@ codec_ucb1400: codec-ucb1400 {
 		 * during the debounce phase, the time
 		 * is reset.
 		 */
-		seco,pen-up-debounce = <100>;
+		seco,pen-up-debounce = <50>;
 	};
 };