[SYCL][E2E] Fix memory leakage (#17250)

Author: dkhaldi

sycl/test-e2e/Matrix/Inputs/joint_matrix_annotated_ptr_impl.hpp

@@ -124,5 +124,11 @@ int main() {
   bool res1 = matrix_compare(M, N, C, D);
   std::cout << (res1 ? "B VNNI passed" : "failed") << std::endl;
 
+  free(A, q);
+  free(B, q);
+  free(vnniB, q);
+  free(C, q);
+  free(D, q);
+
   return !(res0 & res1);
 }

sycl/test-e2e/Matrix/Inputs/joint_matrix_prefetch_impl.hpp

@@ -144,5 +144,13 @@ int main() {
 
   res = res && matrix_compare(M, N, C, Dt);
   std::cout << (res ? "passed" : "failed") << std::endl;
+
+  free(A, q);
+  free(B, q);
+  free(vnniB, q);
+  free(C, q);
+  free(D, q);
+  free(Dt, q);
+
   return !res;
 }