[SYCL][JM] Fix default template parameter location (#17336)

Author: dkhaldi

sycl/include/sycl/ext/oneapi/matrix/matrix-tensorcores.hpp

@@ -28,7 +28,7 @@ namespace experimental {
 namespace matrix {
 
 template <typename Group, typename T, use Use, size_t Rows, size_t Cols,
-          layout Layout = layout::dynamic>
+          layout Layout>
 struct joint_matrix;
 
 } // namespace matrix

sycl/include/sycl/ext/oneapi/matrix/matrix-unified.hpp

@@ -37,9 +37,8 @@ namespace ext {
 namespace oneapi {
 namespace experimental {
 namespace matrix {
-
 template <typename Group, typename T, use Use, size_t Rows, size_t Cols,
-          layout Layout>
+          layout Layout = layout::dynamic>
 struct joint_matrix {
 
 #if defined(__SYCL_DEVICE_ONLY__)

sycl/include/sycl/ext/oneapi/matrix/static-query-use.hpp

@@ -22,7 +22,9 @@
 
 #include <sycl/aliases.hpp> // for half
 #include <sycl/ext/oneapi/experimental/device_architecture.hpp>
+#if defined(__NVPTX__)
 #include <sycl/ext/oneapi/matrix/matrix-tensorcores.hpp>
+#endif                                                     // defined(__NVPTX__)
 #include <sycl/ext/oneapi/matrix/matrix-unified-utils.hpp> // for use, layout
 #include <sycl/ext/oneapi/matrix/matrix-unified.hpp>       // for joint_matrix