Use lambda on all kernel prim ops

This makes executorch_prim::et_copy_index.tensor and
executorch_prim::et_view.default also use a lamba function like the
rest. This fixes a problem where the functions pointers didn't get
proper values for this two ops.

Signed-off-by: Zingo Andersen <zingo.andersen@arm.com>
Change-Id: Icc2623c5fe730483ddb21f041fe52de03f63a953

kernels/prim_ops/register_prim_ops.cpp

@@ -363,9 +363,17 @@ static Kernel prim_ops[] = {
         }),
 
     // executorch_prim::et_copy_index.tensor(tensor, tensor) -> tensor
-    Kernel("executorch_prim::et_copy_index.tensor", &et_copy_index),
+    Kernel(
+        "executorch_prim::et_copy_index.tensor",
+        [](KernelRuntimeContext& context, EValue** stack) {
+          et_copy_index(context, stack);
+        }),
     // executorch_prim::et_view.default(Tensor, int[]) -> Tensor
-    Kernel("executorch_prim::et_view.default", &et_view),
+    Kernel(
+        "executorch_prim::et_view.default",
+        [](KernelRuntimeContext& context, EValue** stack) {
+          et_view(context, stack);
+        }),
 
 };