Add .kd to symbol kernel name for Binary Search sample

Fix Binary Search sample code as kernel symbol name has a .kd
extension.

Change-Id: Id21d2e432faa40bcd5cf343345502e823678fd0f

rocrtst/samples/binary_search/binary_search.cc

@@ -115,7 +115,7 @@ typedef struct BinarySearch {
 
 void InitializeBinarySearch(BinarySearch* bs) {
   bs->kernel_file_name = "./binary_search_kernels.hsaco";
-  bs->kernel_name = "binarySearch";
+  bs->kernel_name = "binarySearch.kd";
   bs->length = kBinarySearchLength;
   bs->find_me = kBinarySearchFindMe;
   bs->work_group_size = kWorkGroupSize;