CONF_UPD: added wakeup source information to allow wake from sleep

Author: 0x0k4y

config/boards/shields/totem/totem.dtsi

@@ -79,6 +79,7 @@
 
     kscan0: kscan_0 {
         compatible = "zmk,kscan-gpio-matrix";
+        wakeup-source;
         label = "KSCAN";
 
         diode-direction = "col2row"; 
@@ -89,4 +90,4 @@
             , <&xiao_d 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
             ;
     };
- };
+ };