izumi_nag mpi-serial tests fail starting in cesm3_0_alpha02a where mct was removed

### Brief summary of bug

The mpi-serial build fails using izumi_nag for mpi-serial tests such as:

ERS_D_Ld5_Mmpi-serial.1x1_vancouverCAN.I1PtClm50SpRs.izumi_nag.clm-CLM1PTStartDate
SMS_D_Ld1_Mmpi-serial.f45_f45_mg37.I2000Clm50SpRs.izumi_nag.clm-ptsRLA

### General bug information

**CESM version you are using:** cesm3_0_alpha02a

**Machine you are using:** izumi

**Have you modified the code? (If so, please point us to you changes.):** No

### Details of bug

Details reported in CTSM:

https://github.com/ESCOMP/CTSM/issues/2654