Coprocessor t154stack firmware for SONOFF Zigbee 3.0 USB Dongle Plus [CC2652P]

Dear Sir/Madam,
We are working on a Home automation project where the Zigbee/Thread stack will be running on a host connected to the Dongle over USB. We will be using the SONOFF Zigbee Dongle Plus based on CC2652. Currently from the factory the dongle gets shipped with Z-Stack and we want to replace with the coprocessor.hex file. In the example folder of TI SDK (ti/simplelink_cc13xx_cc26xx_sdk_6_40_00_13/examples/rtos/CC26X2R1_LAUNCHXL/ti154stack/coprocessor/tirtos7/ticlang) we were able to successfully build and test using LAUNCHXL-CC26X2R1 dev kit. Now we want to use the SONOFF USB Dongle Plus as a final product and want the coprocessor firmware. Which is the source code example that can be used for this dongle? Tried with CC1352_4_LAUNCHXL by enabling -DCOPROCESSOR_CC2652P and -DCOPROCRSSOR defines in application/defines/coprocessor.opts but it does not work.
Can you please help us with the example firmware project for a coprocessor project for SONOFF Zigbee 3.0 USB Dongle Plus?
Sandeep Suresh.