cmake ExampleRcpVendorDeps examples

openthread/openthread src/posix/platform/vendor_extension_example.cmake :49 

find_package(ExampleRcpVendorDeps)

bouffalolab/bouffalo_sdk components/wireless/thread/openthread/src/posix/platform/vendor_extension_example.cmake :49 

find_package(ExampleRcpVendorDeps)