[SYCL] Define interop type for images in Level-Zero and OpenCL backends (#3606)

Currently interop type defined for buffers only.

Author: mikhail-nikolskiy

sycl/include/CL/sycl/backend/level_zero.hpp

@@ -49,6 +49,13 @@ struct interop<backend::level_zero, accessor<DataT, Dimensions, AccessMode,
   using type = char *;
 };
 
+template <typename DataT, int Dimensions, access::mode AccessMode>
+struct interop<backend::level_zero,
+               accessor<DataT, Dimensions, AccessMode, access::target::image,
+                        access::placeholder::false_t>> {
+  using type = ze_image_handle_t;
+};
+
 namespace detail {
 template <> class BackendReturn<backend::level_zero, kernel> {
   using type = ze_kernel_handle_t;

sycl/include/CL/sycl/backend/opencl.hpp

@@ -55,6 +55,13 @@ struct interop<backend::opencl, accessor<DataT, Dimensions, AccessMode,
   using type = cl_mem;
 };
 
+template <typename DataT, int Dimensions, access::mode AccessMode>
+struct interop<backend::opencl,
+               accessor<DataT, Dimensions, AccessMode, access::target::image,
+                        access::placeholder::false_t>> {
+  using type = cl_mem;
+};
+
 template <typename DataT, int Dimensions, typename AllocatorT>
 struct interop<backend::opencl, buffer<DataT, Dimensions, AllocatorT>> {
   using type = cl_mem;