message: sort out RAJA unroll in perf suite
diff: #ifndef RAJAPerf_FEM_MACROS_HPP
  #define RAJAPerf_FEM_MACROS_HPP
  -#define RAJAPERF_DIRECT_PRAGMA(X) _Pragma(#X)
  #if defined(USE_RAJAPERF_UNROLL)
  -#define RAJAPERF_UNROLL(N) RAJAPERF_DIRECT_PRAGMA(unroll(N))
  +// If enabled uses RAJA's RAJA_UNROLL_COUNT which is always on
  +#define RAJAPERF_UNROLL(N) RAJA_UNROLL_COUNT(N)
  #else
  #define RAJAPERF_UNROLL(N)
  #endif
  