hydro bugfix: correctly handle lake_option=3 / no DA case, WRF-Hydro PR#808

[scrasmussen]

TYPE: bugfix

KEYWORDS: hydro, bugfix, lake_option, reservoir DA

SOURCE: Soren Rasmussen, internal hydro group

DESCRIPTION OF CHANGES:
Problem: If lake_option was set to 3 (Reservoir DA) but no Reservoir DA flags were set to .true. the internal lake_option was not set to [levelpool/off/passthrough] and a cryptic error resulted.

Solution: NCAR/wrf_hydro_nwm_public#808 This fix now prints an error message and reverts the value to Level Pool if no DA option is selected.

LIST OF MODIFIED FILES:

M       hydro/OrchestratorLayer/config.F90

TESTS CONDUCTED:

1. Do mods fix problem? Yes, tested in the WRF-Hydro model. WRF builds with GNU
2. Are the Jenkins tests all passing? Yes

RELEASE NOTE: Hydro reservoir drainage area (DA) lake option bugfix

[scrasmussen]

Jenkins Results:

Please find result of the WRF regression test cases in the attachment. This build is for Commit ID: 11b4c4c, requested by: scrasmussen for PR: https://github.com/scala-computing/WRF/pull/2182. For any query please send e-mail to Wei Wang.

Test Type              | Expected  | Received |  Failed
= = = = = = = = = = = = = = = = = = = = = = = =  = = = =
Number of Tests        : 23           24
Number of Builds       : 60           57
Number of Simulations  : 158           150        0
Number of Comparisons  : 95           86        0

Failed Simulations are: 
None
Which comparisons are not bit-for-bit: 
None