Fix  python3.x compatibility for stable 2.0 branch

Change-Id: I958d02873e4ba76be72230365dff8e500fa31b3c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/boot_data.py b/lib/boot_data.py
index 8dfdff0..070a0e6 100755
--- a/lib/boot_data.py
+++ b/lib/boot_data.py
@@ -74,7 +74,7 @@
 
     # For every boot_type we should have a corresponding mfg mode boot type.
     enhanced_boot_table = DotDict()
-    for key, value in boot_table.iteritems():
+    for key, value in boot_table.items():
         enhanced_boot_table[key] = value
         enhanced_boot_table[key + " (mfg)"] = value