Use _INIT to set linker flags in toolchain file
Use _INIT to set linker flags in toolchain file

For whatever reason, using CMAKE_EXE_LINKER_FLAGS_INIT works in earlier
CMake versions.

greatscottgadgets/greatfet,greatscottgadgets/greatfet,dominicgs/GreatFET-experimental,dominicgs/GreatFET-experimental,dominicgs/GreatFET-experimental,greatscottgadgets/greatfet,greatscottgadgets/greatfet