[Sparc] Create an error when `__builtin_longjmp` is used

Support for builtin setjmp/longjmp was removed by https://reviews.llvm.org/D51487. An
error should be created when compiling C code using __builtin_setjmp or __builtin_longjmp.

Reviewed By: dcederman

Differential Revision: https://reviews.llvm.org/D108901