Relocate DF_RPI define

cmake/configs/posix_rpi_common.cmake

@@ -8,6 +8,7 @@ include(posix/px4_impl_posix)
 add_definitions(
 	-D__PX4_POSIX_RPI
 	-D__DF_LINUX # For DriverFramework
+	-D__DF_RPI # For DriverFramework
 )
 
 

cmake/toolchains/Toolchain-arm-linux-gnueabihf.cmake

@@ -70,10 +70,6 @@ foreach(tool echo grep rm mkdir nm cp touch make unzip)
 	endif()
 endforeach()
 
-add_definitions(
-	-D __DF_RPI
-	)
-
 set(LINKER_FLAGS "-Wl,-gc-sections")
 set(CMAKE_EXE_LINKER_FLAGS ${LINKER_FLAGS})
 set(CMAKE_C_FLAGS ${C_FLAGS})