Bug 422773 - "gtk fragments" slightly mis-named since mentions "GTK 2.0"

Do not specify GTK version at all.
diff --git a/bundles/org.eclipse.swt.gtk.aix.ppc64/fragment.properties b/bundles/org.eclipse.swt.gtk.aix.ppc64/fragment.properties
index e65626f..31aa3ed 100644
--- a/bundles/org.eclipse.swt.gtk.aix.ppc64/fragment.properties
+++ b/bundles/org.eclipse.swt.gtk.aix.ppc64/fragment.properties
@@ -8,5 +8,5 @@
 # Contributors:
 #     IBM Corporation - initial API and implementation
 ###############################################################################
-fragmentName = Standard Widget Toolkit for GTK 2.0
+fragmentName = Standard Widget Toolkit for GTK
 providerName = Eclipse.org