Add a new chassisType for Redfish

ChassisType "Blade" is added under Chassis interface to represent
the multihost system chassis which can be plugged in OCP platform.

Tested: Tested in Facebook YosemiteV2 platform.

Change-Id: Ia3ca61b01b96e4febd0d2054ad19d01c70bfed24
Signed-off-by: Jayashree Dhanapal <jayashree-d@hcl.com>
diff --git a/yaml/xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml
index f82639c..c53b87c 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml
@@ -13,6 +13,11 @@
       description: >
           Possible chassis type
       values:
+          - name: Blade
+            description: >
+                An enclosed or semi-enclosed, typically vertically-oriented,
+                system chassis that must be plugged into a multi-system chassis
+                to function normally.
           - name: Component
             description: >
                 A small chassis, card, or device that contains devices for a