FEI patch for astra from Mike glass.

From his email -

I don't know if any other ASC apps are using the FEI package in Trilinos but we (Sierra) have come across a compiler issue on stria related to this package. We're using the ARMHPC 20.1 toolset. The following is our work around. Can this get incorporated into the Trilinos repo?

base/fei_EqnCommMgr.cpp

@@ -741,6 +741,11 @@ void EqnCommMgr::exchangeSoln()
 }
 
 //------------------------------------------------------------------------------
+// This works around an issue with the ARMHPC 20.1 compiler
+// Needs to be revisited with later versions
+#ifdef __ARM_HPC_COMPILER_VERSION__
+__attribute__((optnone))
+#endif
 int EqnCommMgr::mirrorProcEqns(ProcEqns& inProcEqns, ProcEqns& outProcEqns)
 {
   //Beginning assumption: we (the local processor) have a populated ProcEqns