Update UFS-DA atmospheric prep script to be consistent with GDASApp u…

…pdate (#1265)

Updates the GDAS App version to incorporate the changes of NOAA-EMC/GDASApp#278, which restores the ability of `run_jedi_exe.py` to execute UFS-DA applications, specifically `fv3jedi_var.x`. Included in NOAA-EMC/GDASApp#278 is the removal of entry `ufsda.stage` from `ush/ufsda/__init__.py`.  Scripts which simply `import ufsda` must now specify the functions to from `ufsda.stage`. 

g-w issue #1262 documents the addition of the `ufsda.stage` line to `scripts/exgdas_global_atmos_analysis_prep.py`.  This change is required for g-w to successfully stage files used by the var and ensemble UFS-DA applications.

Fixes #1262

Externals.cfg

@@ -50,7 +50,7 @@ protocol = git
 required = False
 
 [GDASApp]
-hash = 843d3a9
+hash = f7c23af
 local_path = sorc/gdas.cd
 repo_url = https://github.com/NOAA-EMC/GDASApp.git
 protocol = git

scripts/exgdas_global_atmos_analysis_prep.py

@@ -35,6 +35,7 @@
 
 # import UFSDA utilities
 import ufsda
+from ufsda.stage import atm_obs, bias_obs
 
 # get configuration based on environment variables
 config = ufsda.misc_utils.get_env_config(component='atm')

sorc/checkout.sh

@@ -165,7 +165,7 @@ if [[ ${checkout_gsi} == "YES" ]]; then
 fi
 
 if [[ ${checkout_gdas} == "YES" ]]; then
-  checkout "gdas.cd" "https://github.com/NOAA-EMC/GDASApp.git" "843d3a9"; errs=$((errs + $?))
+  checkout "gdas.cd" "https://github.com/NOAA-EMC/GDASApp.git" "f7c23af"; errs=$((errs + $?))
 fi
 
 if [[ ${checkout_gsi} == "YES" || ${checkout_gdas} == "YES" ]]; then