P1 RFR of build fix (extra small): JDK-8153303

[Tim Bell]

Please review this build fix.  One ',' was omitted in the JDK-8153257 
changes.

Bug report:
    https://bugs.openjdk.java.net/browse/JDK-8153303

Webrev:
    http://cr.openjdk.java.net/~tbell/8153303/webrev.00/index.html

This is small enough that I am including it here inline:

% hg diff common/conf/jib-profiles.js
diff --git a/common/conf/jib-profiles.js b/common/conf/jib-profiles.js
--- a/common/conf/jib-profiles.js
+++ b/common/conf/jib-profiles.js
@@ -250,7 +250,7 @@
              target_cpu: "x86",
              build_cpu: "x64",
              dependencies: concat(common.dependencies, "devkit"),
-            configure_args: concat(common.configure_args, 
common.configure_args_32bit
+            configure_args: concat(common.configure_args, 
common.configure_args_32bit,
                  "--with-zlib=system"),
              make_args: common.make_args
          },


Thanks in advance-

Tim