vita-make-fself: Add an option to generate safe eboots
vita-make-fself: Add an option to generate safe eboots

yne/vita-toolchain,endrift/vita-toolchain,endrift/vita-toolchain,yne/vita-toolchain,vitasdk/vita-toolchain,173210/vita-toolchain,173210/vita-toolchain,vitasdk/vita-toolchain