examples/basic_examples: opencl codelets are compiled from their source directory (see #4440)

examples/basic_examples/multiformat_conversion_codelets_opencl_kernel.cl

@@ -13,7 +13,7 @@
  *
  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
  */
-#include "examples/basic_examples/multiformat_types.h"
+#include "multiformat_types.h"
 __kernel void cpu_to_opencl_opencl(__global struct struct_of_arrays *src,
 				__global struct point *dst,
 				unsigned int n)

examples/basic_examples/multiformat_opencl_kernel.cl

@@ -14,7 +14,7 @@
  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
  */
 
-#include "examples/basic_examples/multiformat_types.h"
+#include "multiformat_types.h"
 __kernel void multiformat_opencl(__global struct point* val, int nx)
 {
         const int i = get_global_id(0);