Add 2016 Device Model Names to ACTS Model Lookups

-Add the model name and a placeholder to acts.utils

Bug: 28694651
Change-Id: I7df39152ea17ed00650dfb551d361d031a1b3bd9
diff --git a/acts/framework/acts/utils.py b/acts/framework/acts/utils.py
index 3d2a6fe..b7e427b 100755
--- a/acts/framework/acts/utils.py
+++ b/acts/framework/acts/utils.py
@@ -40,14 +40,15 @@
     N5v2 = 'bullhead'
     N6 = 'shamu'
     N6v2 = 'angler'
-
+    N6v3 = 'marlin'
+    N5v3 = 'sailfish'
 
 ascii_letters_and_digits = string.ascii_letters + string.digits
 valid_filename_chars = "-_." + ascii_letters_and_digits
 
 models = ("sprout", "occam", "hammerhead", "bullhead", "razor", "razorg",
           "shamu", "angler", "volantis", "volantisg", "mantaray", "fugu",
-          "ryu")
+          "ryu", "marlin", "sailfish")
 
 manufacture_name_to_model = {
     "flo": "razor",