Set jmaxb1 to 0.17 and set paramfile with leaf changes for arctic pla…

…nts to compensate for LUNA bugs ESCOMP#953 and ESCOMP#958

bld/namelist_files/namelist_defaults_ctsm.xml

@@ -372,7 +372,7 @@ attributes from the config_cache.xml file (with keys converted to upper-case).
 <!-- The default filenames are given relative to the root directory
      for the CLM2 data in the CESM distribution -->
 <!-- Plant function types (relative to {csmdata}) -->
-<paramfile phys="clm5_0">lnd/clm2/paramdata/clm5_params.c200402.nc</paramfile>
+<paramfile phys="clm5_0">lnd/clm2/paramdata/clm5_params.c200604.nc</paramfile>
 <paramfile phys="clm4_5">lnd/clm2/paramdata/clm_params.c200402.nc</paramfile>
 
 <!-- ================================================================== -->
@@ -421,7 +421,7 @@ attributes from the config_cache.xml file (with keys converted to upper-case).
 <use_fertilizer use_crop=".true." phys="clm4_5">.true.</use_fertilizer>
 <use_fertilizer use_crop=".true." phys="clm5_0">.true.</use_fertilizer>
 
-<jmaxb1 use_luna=".true." phys="clm5_0">0.093563</jmaxb1>
+<jmaxb1 use_luna=".true." phys="clm5_0">0.17</jmaxb1>
 
 <use_grainproduct>.false.</use_grainproduct>
 <use_grainproduct use_crop=".true." phys="clm4_5">.false.</use_grainproduct> <!-- 1-year grain product pool default to off for clm45 if crop is turned on -->