dt-bindings: input: microchip,cap11xx: Update datasheet URL and LED reg range

- Add datasheet links for all supported CAP11xx variants.
- Update LED node regex and replace enum constraints with minimum/maximum
  for LED reg ranges in preparation for CAP1114 support.

CAP1114 has 11 LED channels. minimum/maximum constraints are easier to
maintain than long enum lists when expanding channel count later.

Drop unnecessary led unit-address pattern.

Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260617150318.753148-4-jerrysteve1101@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/microchip,cap11xx.yaml

@@ -10,6 +10,15 @@ description: |
   The Microchip CAP1xxx Family of RightTouchTM multiple-channel capacitive
   touch controllers and LED drivers. The device communication via I2C only.
 
+  For more product information please see the links below:
+    CAP1106: https://ww1.microchip.com/downloads/en/DeviceDoc/00001624B.pdf
+    CAP1126: https://ww1.microchip.com/downloads/en/DeviceDoc/00001623B.pdf
+    CAP1188: https://ww1.microchip.com/downloads/en/DeviceDoc/00001620C.pdf
+    CAP1203: https://ww1.microchip.com/downloads/en/DeviceDoc/00001572B.pdf
+    CAP1206: https://ww1.microchip.com/downloads/en/DeviceDoc/00001567B.pdf
+    CAP1293: https://ww1.microchip.com/downloads/en/DeviceDoc/00001566B.pdf
+    CAP1298: https://ww1.microchip.com/downloads/en/DeviceDoc/00001571B.pdf
+
 maintainers:
   - Rob Herring <robh@kernel.org>
 
@@ -131,7 +140,9 @@ patternProperties:
 
     properties:
       reg:
-        enum: [0, 1, 2, 3, 4, 5, 6, 7]
+        description: LED channel number
+        minimum: 0
+        maximum: 7
 
       label: true
 
@@ -158,7 +169,7 @@ allOf:
               - microchip,cap1298
     then:
       patternProperties:
-        "^led@[0-7]$": false
+        "^led@": false
 
   - if:
       properties: