message: fix: add HIP source/header files to CMake build
diff: @@ -28,6 +28,7 @@ list(APPEND SRCS
  table.cpp
  tic_toc.cpp
  version.cpp
  + hip.cpp
  )
  list(APPEND HDRS
  @@ -57,6 +58,7 @@ list(APPEND HDRS
  tic_toc.hpp
  text.hpp
  version.hpp
  + hip.hpp
  )
  if (MFEM_USE_MPI)
  