dt-bindings: Remove the redundant 'type: boolean'

The 'wakeup-source' property already has its type defined in the core
schema. Remove the redundant 'type: boolean' from the binding file to
clean up the binding files.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260417021858.6582-1-phucduc.bui@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/input/atmel,maxtouch.yaml

@@ -88,8 +88,7 @@ properties:
       - 2 # ATMEL_MXT_WAKEUP_GPIO
     default: 0
 
-  wakeup-source:
-    type: boolean
+  wakeup-source: true
 
 required:
   - compatible

Documentation/devicetree/bindings/mfd/rockchip,rk816.yaml

@@ -44,8 +44,7 @@ properties:
     description:
       Telling whether or not this PMIC is controlling the system power.
 
-  wakeup-source:
-    type: boolean
+  wakeup-source: true
 
   vcc1-supply:
     description:

Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml

@@ -43,8 +43,7 @@ properties:
   vbus-supply:
     description: VBUS power supply
 
-  wakeup-source:
-    type: boolean
+  wakeup-source: true
 
   connector:
     type: object