Set MueLu_ENABLE_Epertra=OFF to fix MueLu CUDA link failures (#2319, …

…TRIL-171)

This should fix the MueLu build failures with CUDA reported in #2319.

I also removed setting Tpetra_INST_SERIAL=ON.  This should cut down on the
build times over setting Tpetra_INST_SERIAL=ON.

cmake/std/atdm/ATDMDevEnv.cmake

@@ -123,12 +123,10 @@ ATDM_SET_CACHE(Kokkos_ENABLE_Debug_Bounds_Check "${ATDM_BOUNDS_CHECK}" CACHE BOO
 ATDM_SET_CACHE(KOKKOS_ARCH "$ENV{ATDM_CONFIG_KOKKOS_ARCH}" CACHE STRING)
 ATDM_SET_CACHE(EpetraExt_ENABLE_HDF5 OFF CACHE BOOL)
 ATDM_SET_CACHE(MueLu_ENABLE_Experimental ON CACHE BOOL)
+ATDM_SET_CACHE(MueLu_ENABLE_Epetra OFF CACHE BOOL)
 ATDM_SET_CACHE(Panzer_ENABLE_FADTYPE "Sacado::Fad::DFad<RealType>" CACHE STRING)
 ATDM_SET_CACHE(Phalanx_KOKKOS_DEVICE_TYPE "${ATDM_NODE_TYPE}" CACHE STRING)
 ATDM_SET_CACHE(Phalanx_SHOW_DEPRECATED_WARNINGS OFF CACHE BOOL)
-IF (ATDM_USE_CUDA)
-  ATDM_SET_CACHE(Tpetra_INST_SERIAL "${ATDM_USE_CUDA}" CACHE BOOL)
-ENDIF()
 ATDM_SET_CACHE(Tpetra_INST_CUDA "${ATDM_USE_CUDA}" CACHE BOOL)
 ATDM_SET_CACHE(Xpetra_ENABLE_Experimental ON CACHE BOOL)