SWDEV-448118 - Enable MemPool SetAccess testcase & Update Mipmapped Array Testcases

- Unit_hipMemPoolSetAccess_Negative_Parameters has been fixed, so enable it back
- Mipmap is not supported on Linux, skip inside the testcases

Change-Id: If4e6aaef1bbbff33b810714aecfc3e41fa6b41f3

catch/unit/texture/hipGetMipmappedArrayLevel.cc

@@ -42,6 +42,11 @@ THE SOFTWARE.
 TEST_CASE("Unit_hipGetMipmappedArrayLevel_Negative_Parameters") {
   CHECK_IMAGE_SUPPORT;
 
+#ifdef __linux__
+    HipTest::HIP_SKIP_TEST("Mipmap APIs are not supported on Linux");
+    return;
+#endif //__linux__
+
   hipMipmappedArray_t array;
   hipChannelFormatDesc desc = hipCreateChannelDesc<float>();
   hipExtent extent = make_hipExtent(4, 4, 6);