Add MPICH_IGNORE_CXX_SEEK declaration for modules using MPI

Change-Id: I586db1fa8e06311d08f4bc977485cecd3a520020

Filters/Cosmo/CMakeLists.txt

 if(VTK_COSMOS_USE_MPI)
   find_package(MPI REQUIRED)
   include_directories(${MPI_INCLUDE_PATH})
+  add_definitionS("-DMPICH_IGNORE_CXX_SEEK")
 else()
   add_definitions(-DUSE_SERIAL_COSMO)
 endif()

IO/ParallelNetCDF/CMakeLists.txt

 find_package(MPI)
 include_directories(${MPI_INCLUDE_PATH})
+add_definitionS("-DMPICH_IGNORE_CXX_SEEK")
 
 set(Module_SRCS
   vtkPNetCDFPOPReader.cxx

IO/VPIC/CMakeLists.txt

 if(VTK_VPIC_USE_MPI)
   find_package(MPI REQUIRED)
   include_directories(${MPI_INCLUDE_PATH})
+  add_definitionS("-DMPICH_IGNORE_CXX_SEEK")
 endif()
 
 set(Module_SRCS