Change MARBL debug test to 1 day

Was: SMS_Ld2_D.TL319_t232.C1850MARBL_JRA.derecho_intel
Now: SMS_Ld1_D.TL319_t232.C1850MARBL_JRA.derecho_intel

I also added this test to the prebeta test list.

Author: mnlevy1981

cime_config/testdefs/testlist_mom.xml

@@ -119,9 +119,10 @@
       <option name="wallclock">00:30:00</option>
     </options>
   </test>
-  <test name="SMS_Ld2_D" grid="TL319_t232" compset="C1850MARBL_JRA">
+  <test name="SMS_Ld1_D" grid="TL319_t232" compset="C1850MARBL_JRA">
     <machines>
       <machine name="derecho" compiler="intel" category="aux_mom_MARBL"/>
+      <machine name="derecho" compiler="intel" category="prebeta"/>
     </machines>
     <options>
       <option name="wallclock">00:30:00</option>