Add "Exposes BMC" fields to configurations

The field is added to the JSON configurations such that when
Entity-Manager detects the corresponding board, an Inventory.Item.BMC
item is created to represent the BMC that runs the current OpenBMC
instance.

Signed-off-by: Sui Chen <suichen@google.com>
Change-Id: I9f1ba1ad107b183edd4a557a27a4865596d68d13
diff --git a/configurations/fbtp.json b/configurations/fbtp.json
index f271b67..601cfca 100644
--- a/configurations/fbtp.json
+++ b/configurations/fbtp.json
@@ -229,6 +229,10 @@
             "Type": "AspeedFan"
         },
         {
+            "Name": "BMC",
+            "Type": "BMC"
+        },
+        {
             "Direction": "Out",
             "Index": 33,
             "Name": "Reset Out",