The soca fix path is needed in config.prepoceanobs (#2460)

# Description
Give the prepoceanobs task access to SOCA_INPUT_FIX_DIR, which will be
needed for some of the obs processing.

# How has this been tested?
Ran the ocean obs prep job

parm/config/gfs/config.prepoceanobs

@@ -6,6 +6,7 @@ echo "BEGIN: config.prepoceanobs"
 
 export OCNOBS2IODAEXEC=${HOMEgfs}/sorc/gdas.cd/build/bin/gdas_obsprovider2ioda.x
 
+export SOCA_INPUT_FIX_DIR=@SOCA_INPUT_FIX_DIR@
 export OBS_YAML_DIR=${HOMEgfs}/sorc/gdas.cd/parm/soca/obs/config
 export OBSPREP_YAML=@OBSPREP_YAML@
 export OBS_LIST=@SOCA_OBS_LIST@

parm/config/gfs/yaml/defaults.yaml

@@ -40,7 +40,9 @@ ocnanal:
   SABER_BLOCKS_YAML: ""
   NICAS_RESOL: 1
   NICAS_GRID_SIZE: 15000
+
 prepoceanobs:
+  SOCA_INPUT_FIX_DIR: "/scratch2/NCEPDEV/ocean/Guillaume.Vernieres/data/static/72x35x25/soca"  # TODO: These need to go to glopara fix space.
   SOCA_OBS_LIST: "${PARMgfs}/gdas/soca/obs/obs_list.yaml"  # TODO: This is also repeated in ocnanal
   OBSPREP_YAML: "${PARMgfs}/gdas/soca/obsprep/obsprep_config.yaml"
   DMPDIR: "/scratch1/NCEPDEV/global/glopara/data/experimental_obs"