inventory: PCIeDevice: Add MaxLanes information to PCIe Device

The Max Lanes information is maximum number of PCIe lanes supported by
the PCIe Device.

Change-Id: Id90ba3849ee6c31745a2714ac94a01fd4d64e657
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/yaml/xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml
index a710268..54f0930 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml
@@ -287,3 +287,9 @@
       type: string
       description: >
           The name of the Manufacturer for this device.
+
+    - name: MaxLanes
+      type: size
+      default: 0
+      description: >
+          The maximum number of PCIe lanes supported by the PCIe Device