[PATCH] dt-bindings: net: bluetooth: realtek: Fix uart-has-rtscts example

uart-has-rtscts is a boolean property. These are defined as present (which means that this property evaluates to "true") or absent (which means that this property evaluates to "false"). Remove the numeric value from the example to make it comply with the boolean property bindings. Fixes: 1cc2d0e02

Re: [PATCH] dt-bindings: net: bluetooth: realtek: Fix uart-has-rtscts example

Hi Martin, > uart-has-rtscts is a boolean property. These are defined as present > (which means that this property evaluates to "true") or absent (which > means that this property evaluates to "false"). Remove the numeric value > from the example to make it comply with the boolean property binding