Merge branch 'brhillman/eamxx/enable-build-on-ghost' into master (PR E3SM-Project#7427)

Add cmake config for ghost

[BFB]

Author: jgfouca

components/eamxx/cmake/machine-files/ghost.cmake

@@ -0,0 +1,15 @@
+include(${CMAKE_CURRENT_LIST_DIR}/common.cmake)
+common_setup()
+
+set(EKAT_MACH_FILES_PATH ${CMAKE_CURRENT_LIST_DIR}/../../../../externals/ekat/cmake/machine-files)
+
+# Get AMD arch settings
+include(${EKAT_MACH_FILES_PATH}/kokkos/intel-skx.cmake)
+
+# Add OpenMP settings in standalone mode OR e3sm with compile_threaded=ON
+if (NOT "${PROJECT_NAME}" STREQUAL "E3SM" OR compile_threaded)
+  include(${EKAT_MACH_FILES_PATH}/kokkos/openmp.cmake)
+endif()
+
+# Use srun for standalone testing
+include(${EKAT_MACH_FILES_PATH}/mpi/srun.cmake)