SWDEV-290637 - Specify a working directory when calling hip_embed_pch.sh

Consider the case where cmake is invoked as follows:

    cd <parent_dir>
    cmake -S<source_dir> -B<build_dir> ...

  If `WORKING_DIRECTORY` parameter is not specified in `execute_command`,
  `hip_pch.o` is created outside `<build_dir>`, in `<parent_dir>/hip_pch.o`.

Change-Id: I751f4390628315ad70c36148e09824c19c93ae9e

hipamd/src/CMakeLists.txt

@@ -183,7 +183,7 @@ if(__HIP_ENABLE_PCH)
     set(HIP_LLVM_ROOT "${LLVM_DIR}/../../..")
   endif()
 
-  execute_process(COMMAND sh -c "${CMAKE_CURRENT_SOURCE_DIR}/hip_embed_pch.sh ${HIP_COMMON_INCLUDE_DIR} ${PROJECT_BINARY_DIR}/include ${PROJECT_SOURCE_DIR}/include ${HIP_LLVM_ROOT}" COMMAND_ECHO STDERR RESULT_VARIABLE EMBED_PCH_RC)
+  execute_process(COMMAND sh -c "${CMAKE_CURRENT_SOURCE_DIR}/hip_embed_pch.sh ${HIP_COMMON_INCLUDE_DIR} ${PROJECT_BINARY_DIR}/include ${PROJECT_SOURCE_DIR}/include ${HIP_LLVM_ROOT}" COMMAND_ECHO STDERR RESULT_VARIABLE EMBED_PCH_RC WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
   if (EMBED_PCH_RC AND NOT EMBED_PCH_RC EQUAL 0)
     message(FATAL_ERROR "Failed to embed PCH")
   endif()