Fix various Wformat warnings (#2135)

test_copy_1D.cpp: num_mip_levels is a cl_uint, so don't cast and just
print using `%u`.

test_pipe_info.cpp: arg_type_qualifier is a 64-bit wide bitfield, so
print in hexadecimal format using the correct length modifier.

test_device_partition.cpp: it is not clear what the bit width of
`cl_device_partition_property` should be, so cast the operands to align
with the format specifiers.

Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>

test_conformance/pipes/test_pipe_info.cpp

@@ -13,6 +13,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+
+#include <cinttypes>
+
 #include "procs.h"
 #include "harness/parseParameters.h"
 
@@ -73,7 +76,7 @@ int test_pipe_info( cl_device_id deviceID, cl_context context, cl_command_queue
         test_error_fail(err, "clGetKernelArgInfo failed");
         if (arg_type_qualifier != CL_KERNEL_ARG_TYPE_PIPE)
         {
-            test_fail("ERROR: Incorrect type qualifier: %i\n",
+            test_fail("ERROR: Incorrect type qualifier: 0x%" PRIx64 "\n",
                       arg_type_qualifier);
         }
     }