Fix mismatched use of xnn_allocate_zero_simd_memory and xnn_release_m…

…emory

This causes crashes on windows, uncovered in #7830.

PiperOrigin-RevId: 728501674

src/runtime.c

@@ -117,7 +117,7 @@ enum xnn_status xnn_release_workspace(xnn_workspace_t workspace)
   assert(workspace->ref_count != 0);
   if (--workspace->ref_count == 0) {
     xnn_release_simd_memory(workspace->data);
-    xnn_release_memory(workspace);
+    xnn_release_simd_memory(workspace);
   }
   return xnn_status_success;
 }