Inventory fan property check

Added:
    - Added checking for fan properties.
    - Added MeetsMinimumShipLevel to the list of properties
      checked for fan inventory items.

Change-Id: I361380da09f04499621f655082a63e63c78e0602
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/data/inventory.py b/data/inventory.py
index 5cdac4a..84a1fa5 100644
--- a/data/inventory.py
+++ b/data/inventory.py
@@ -7,6 +7,7 @@
     "fan":[
         "PrettyName",
         "Present",
+        "MeetsMinimumShipLevel",
         "Functional"
     ],
     "fru":[