Support using huge2 test set for file error rate tests.

Signed-off-by: Stefan Westerfeld <stefan@space.twc.de>

src/ber-test.sh

@@ -21,6 +21,8 @@ fi
     cat test_list
   elif [ "x$AWM_SET" == "xhuge" ]; then
     ls huge/T*
+  elif [ "x$AWM_SET" == "xhuge2" ]; then
+    ls huge2/T*
   else
     echo "bad AWM_SET $AWM_SET" >&2
     exit 1