Update testlist_rtm

[slevis-lmwg]

As recommended by @ekluzek

Resolves #54

[slevis-lmwg]

Generating baselines on derecho:
./run_sys_tests -s rtm -c rtm1_0_80-ctsm5.2.029 -g rtm1_0_80-ctsm5.3.009

[slevis-lmwg]

Comparing to baselines on derecho:
./run_sys_tests -s rtm -g rtm1_0_81-ctsm5.2.009 -c rtm1_0_80-ctsm5.3.009
/glade/work/slevis/git/hXi_hXa_tapes_iss1059/tests_1106-151907de

[slevis-lmwg]

When rtm test suite completes, make tag and merge

[slevis-lmwg]

@ekluzek most tests failed with the following errors:

ERROR: Invalid compset name, I1850Clm45Sp, all stub components generated
ERROR: Invalid compset name, I2000Clm60SpNoAnthro, all stub components generated

The first could be replaced with one of these:

I1850Clm45BgcCrop
I1850Clm45BgcCru
I1850Clm45Bgc

The second could be replaced with one of these (though I assume the Rs is no good for running rtm):

I2000Clm60Sp
I2000Clm60SpRs

I will try the 3rd from the first list and the 1st from the second list, and I will resubmit the test suite.

[slevis-lmwg]

Rethinking the above choices to:
I2000Clm45Sp
I1850Clm60SpNoAnthro

[slevis-lmwg]

New problem with the NoAnthro compset:
err=ERROR : CLM build-namelist::CLMBuildNamelist::add_default() : No default value found for fsurdat.

Removed NoAnthro and got next error:
ERROR: No variable RTM_FLOOD_MODE found in case

@ekluzek we probably need to discuss what we want here before I go down a rabbit hole to resolve this.

[slevis-lmwg]

From meeting with @ekluzek
Change the NoAnthro tests to f09.

[slevis-lmwg]

New tests
IN PROGRESS ./run_sys_tests -s rtm -g rtm1_0_81-ctsm5.2.009 -c rtm1_0_80-ctsm5.3.009
in /glade/derecho/scratch/slevis/tests_1108-140627de

[slevis-lmwg]

@jedwards4b this PR changes tests in the rtm testlist. I ran the rtm test-suite and they work. Would you be willing to approve my PR?

[jedwards4b]

LGTM - thanks