Eltex.MES. Fix detect profile typo.

sa/profiles/Eltex/MES/profile.py

@@ -99,12 +99,13 @@ class Profile(BaseProfile):
         "116": "MES-3308F",
         "120": "MES-3348F",
         "136": "MES-5316A",
-        "190": ("MES-3324F", "rev.B"),  # rev.B
+        "190": "MES-3324F",  # rev.B
     }
 
+    REVISIONS = {"190": "rev.B"}
+
     def get_platform(self, s):
-        platform, *revision = self.PLATFORMS.get(s)
-        return platform, revision[0] if revision else None
+        return self.PLATFORMS.get(s), self.REVISIONS.get(s)
 
     INTERFACE_TYPES = {
         "as": "physical",  # Async