224269 Startup takes 20 times longer on PPC with P2 enabled -- adjust timeout

releng.wtpbuilder/distribution/wtp.tests/build.xml

@@ -140,6 +140,7 @@
         one for individual suites.
         
         some common values, of milliseconds to more recognizable units:
+        14400000: 4 hours ... up'd to 4 hours after P2
         7200000: 2 hours
         3600000: 1 hour
         1800000: 30 minutes
@@ -147,7 +148,7 @@
     -->
     <property
         name="testTimeLimit"
-        value="7200000" />
+        value="14400000" />
     <property
         name="testFailOnError"
         value="false" />