Temporarily disable Intrepid2 in SPARC's Trilinos build for shiller

As of 13 Dec 2017, Intrepid2 does not build with CUDA 9.
See the following Trilinos issue:

trilinos#1928

According to Travis Fisher on 14 Dec 2017, SPARC has promised to
work with Intrepid2 at some point.  Thus, when the above issue is
fixed and Intrepid2 works correctly with CUDA 9, please reenable
Intrepid2 by setting Trilinos_ENABLE_Intrepid2=ON.

do-cmake_trilinos_shiller-gpu_gcc_cuda_openmpi.sh

@@ -129,6 +129,8 @@ cmake \
    -D Trilinos_ENABLE_STKTopology=OFF \
    -D Trilinos_ENABLE_Pamgen=OFF \
    \
+   -D Trilinos_ENABLE_Intrepid2=OFF \
+   \
    -D Trilinos_ENABLE_ShyLU=OFF \
    -D Trilinos_ENABLE_ShyLUCore=OFF \
    -D Trilinos_ENABLE_ShyLUHTS=OFF \