Change grib dirnames to grib2

Directory name that holds grib files updated to be 'grib2', since
that is the actual filetype.

Refs: NOAA-EMC#761

parm/config/config.com

@@ -53,7 +53,7 @@ declare -rx COM_ATMOS_RESTART_TMPL=${COM_BASE}'/model_data/atmos/restart'
 declare -rx COM_ATMOS_ANALYSIS_TMPL=${COM_BASE}'/analysis/atmos'
 declare -rx COM_ATMOS_HISTORY_TMPL=${COM_BASE}'/model_data/atmos/history'
 declare -rx COM_ATMOS_MASTER_TMPL=${COM_BASE}'/model_data/atmos/master'
-declare -rx COM_ATMOS_GRIB_TMPL=${COM_BASE}'/products/atmos/grib/${GRID}'
+declare -rx COM_ATMOS_GRIB_TMPL=${COM_BASE}'/products/atmos/grib2/${GRID}'
 declare -rx COM_ATMOS_BUFR_TMPL=${COM_BASE}'/products/atmos/bufr'
 declare -rx COM_ATMOS_GEMPAK_TMPL=${COM_BASE}'/products/atmos/gempak/${GRID}'
 declare -rx COM_ATMOS_GENESIS_TMPL=${COM_BASE}'/products/atmos/cyclone/genesis_vital'
@@ -80,7 +80,7 @@ declare -rx COM_OCEAN_2D_TMPL=${COM_BASE}'/products/ocean/2D'
 declare -rx COM_OCEAN_3D_TMPL=${COM_BASE}'/products/ocean/3D'
 declare -rx COM_OCEAN_DAILY_TMPL=${COM_BASE}'/products/ocean/daily'
 declare -rx COM_OCEAN_XSECT_TMPL=${COM_BASE}'/products/ocean/xsect'
-declare -rx COM_OCEAN_GRIB_TMPL=${COM_BASE}'/products/ocean/grib/${GRID}'
+declare -rx COM_OCEAN_GRIB_TMPL=${COM_BASE}'/products/ocean/grib2/${GRID}'
 
 declare -rx COM_ICE_INPUT_TMPL=${COM_BASE}'/model_data/ice/input'
 declare -rx COM_ICE_HISTORY_TMPL=${COM_BASE}'/model_data/ice/history'