find_package(hip) changes for clang

Change-Id: I9dc1be1dd5f9424e26ebcd2961207e1c4467550f


[ROCm/clr commit: ce8a5af666]

projects/clr/hipamd/tests/src/deviceLib/hipMathFunctions.cpp

@@ -21,7 +21,7 @@ THE SOFTWARE.
 */
 
 /* HIT_START
- * BUILD: %t %s ../test_common.cpp HCC_OPTIONS -Xclang -fallow-half-arguments-and-returns EXCLUDE_HIP_PLATFORM nvcc
+ * BUILD: %t %s ../test_common.cpp HCC_OPTIONS -Xclang -fallow-half-arguments-and-returns CLANG_OPTIONS -Xclang -fallow-half-arguments-and-returns EXCLUDE_HIP_PLATFORM nvcc
  * TEST: %t
  * HIT_END
  */