[SYCL] Add Noexcept to clang SPIR-V builtin declaration (#17435)
This fixes following error when SYCL header declares a SPIR-V builtin
with noexcept specifier and the builtin is also declared in
clang/lib/Sema/SPIRVBuiltins.td:
"exception specification in declaration does not match previous
declaration" For instance, __spirv_ControlBarrier declaration in
clang/test/CodeGenSYCL/Inputs/sycl.hpp has the build error.
