[SYCL][PI] Provide a preprocessor macro to locate the CUPTI library f…

…or XPTI tracing (intel#11866)

This is a prerequisite for implementing dynamic loading of the CUPTI
library when XPTI tracing is enabled.

See oneapi-src/unified-runtime#1070

sycl/plugins/cuda/CMakeLists.txt

@@ -63,5 +63,10 @@ if (SYCL_ENABLE_XPTI_TRACING)
  )
 endif()
 
+if(CUDA_cupti_LIBRARY)
+ target_compile_definitions(pi_cuda PRIVATE
+ "-DCUPTI_LIB_PATH=\"${CUDA_cupti_LIBRARY}\"")
+endif()
+
 set_target_properties(pi_cuda PROPERTIES LINKER_LANGUAGE CXX)