use correct nofpu versions of setjmp/longjmp used on sh-nofpu-fdpic

when adding the fdpic subarchs, the need for these sub files was
overlooked. thus setjmp and longjmp performed illegal instructions.

src/setjmp/sh-nofpu-fdpic/longjmp.sub

+../sh-nofpu/longjmp.s

src/setjmp/sh-nofpu-fdpic/setjmp.sub

+../sh-nofpu/setjmp.s

src/setjmp/sheb-nofpu-fdpic/longjmp.sub

+../sh-nofpu/longjmp.s

src/setjmp/sheb-nofpu-fdpic/setjmp.sub

+../sh-nofpu/setjmp.s