dt-bindings: trivial-devices: add compatible string nxp,isp1301 from isp1301.txt

Delete isp1301.txt and add compatible string nxp,isp1301 to trivial-devices
because this i2c device have only reg propepty.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250623204048.2493819-1-Frank.Li@nxp.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Author: nxpfrankli

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -311,6 +311,8 @@ properties:
           - national,lm92
             # Nuvoton Temperature Sensor
           - nuvoton,w83773g
+            # NXP ISP1301 USB transceiver
+          - nxp,isp1301
             # OKI ML86V7667 video decoder
           - oki,ml86v7667
             # ON Semiconductor ADT7462 Temperature, Voltage Monitor and Fan Controller