[TF-M] Ninja builds broken

Looks like Ninja builds are now broken for some targets.

AN519, AN521, AN539, and possibly others, fails to link tfm_ns.axf with the following error: --- Usage: wrapper.py [OPTIONS] INFILE OUTFILE Try "wrapper.py --help" for help.

Error: Got unexpected extra argument (C:/Users/thomasto/Projects/tf-m1/trusted-firmware-m/cmake_build_gcc/tfm_s_signed.bin) ninja: build stopped: subcommand failed. ---

Thomas