Caliper annotation fixes

[slabasan]

Work in progress list, still need to review code in more depth

• setup-FOM goes to above HYPRE_BoomerAMGGetCumNnzAP, end-FOM to right after, not print.
• replace multiple Adiak calls to single Adiak call
• FOM1 adiak_namevalue after FOM1 =
• FOM1 calculation incorrect, wall_time not updated -- get MPI time before and after preconditioner, then use the difference as the wall_time denominator in FOM1 calculation
• remove setup-FOM region, leave adiak reporting of FOM1
• remove calculate-FOM region, leave adiak reporting of solve and final FOM

HYPRE_PCGSetup(pcg_solver, (HYPRE_Matrix)parcsr_A, (HYPRE_Vector)b, (HYPRE_Vector)x); is preconditioner

@pearce8 @daboehme