[SYCL] Missing space fix for sycl_hpp_available in lit.cfg (#520)

Fix for sycl_hpp_available in lit.cfg.py which always returns non-zero on windows.

Co-authored-by: Alexey Bader <[email protected]>

Author: denis-kabanov

SYCL/lit.cfg.py

@@ -204,7 +204,7 @@
     fp.write('int main() {}')
 
 extra_sycl_include = ""
-sycl_hpp_available = subprocess.getstatusoutput(config.dpcpp_compiler + ' -fsycl  ' + check_sycl_hpp_file + ("/c" if cl_options else "-c"))
+sycl_hpp_available = subprocess.getstatusoutput(config.dpcpp_compiler + ' -fsycl  ' + check_sycl_hpp_file + ' ' + ("/c" if cl_options else "-c"))
 if sycl_hpp_available[0] != 0:
     lit_config.note('Simple include of sycl/sycl.hpp failed with output: ' + sycl_hpp_available[1] + 
                     '\nUsing fake sycl/sycl.hpp (which just points to CL/sycl.hpp)')