We need to allow CTSM as well as CLM in CISM config_pes.xml

The PE layout for gland4 on cheyenne, needs to be generalized to allow CTSM in the name as well as CLM.

Here's the segment of config_pes.xml that needs to change:

  <grid name="g%gland4" >
    <mach name="cheyenne">
      <pes pesize="any" compset="DATM%.+_CLM.+_CICE.*_POP2.+CISM2.+_SWAV">
        <comment>none</comment>
        <ntasks>

See the cime issue regarding this...

https://github.com/ESMCI/cime/issues/3390

ESCOMP / CISM-wrapper

We need to allow CTSM as well as CLM in CISM config_pes.xml #29