Merge branch 'gswp3drvflds' of https://github.com/ekluzek/cime into gswp3drvflds

Author: ekluzek

driver_cpl/bld/namelist_files/namelist_definition_drv.xml

@@ -423,7 +423,7 @@ id="flux_epbal"
 type="char*8"
 category="control" 
 group="seq_infodata_inparm"
-valid_values="off,on">
+valid_values="off,ocn">
 Only used for C,G compsets: if ocn, ocn provides EP balance factor for precip
 default: off
 </entry>