[Comgr] Add missing -nogpulib to test bitcode generation

Change-Id: Ia423b9d1c02daa983a7e5b7188bf870a149205f3

Author: lamb-j

amd/comgr/test/CMakeLists.txt

@@ -44,7 +44,7 @@ macro(add_test_input_bitcode name input output)
   add_custom_command(
     OUTPUT "${output}"
     COMMAND "$<TARGET_FILE:clang>" -c -emit-llvm -target amdgcn-amd-amdhsa
-    -mcpu=gfx900
+    -mcpu=gfx900 -nogpulib
     ${ARGN} "${CMAKE_CURRENT_SOURCE_DIR}/${input}"
     -o "${output}"
     VERBATIM