Add an additional literal test

test/gpu/literal.cpp

+#include <test.hpp>
+#include <basic_ops.hpp>
+#include <migraph/program.hpp>
+#include <migraph/generate.hpp>
+#include <migraph/gpu/target.hpp>
+#include <migraph/gpu/hip.hpp>
+
+void gpu_literal_test() 
+{
+    migraph::program p;
+    auto lit = generate_literal(migraph::shape{migraph::shape::float_type, {4, 3, 3, 3}});
+    p.add_literal(lit);
+    p.compile(migraph::gpu::target{});
+    auto result = p.eval({});
+    EXPECT(lit == migraph::gpu::from_gpu(result));
+}
+
+int main()
+{
+    gpu_literal_test();
+}