Add Drive interface

Add drive interface to keep track of drive
state. This currently adds Rebuilding state for
drives in a RAID context.

Tested: Builds

Change-Id: I696ec41acf4a106dcff520a78f5001b3244282eb
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/xyz/openbmc_project/State/Drive.interface.yaml b/xyz/openbmc_project/State/Drive.interface.yaml
new file mode 100644
index 0000000..3ad2793
--- /dev/null
+++ b/xyz/openbmc_project/State/Drive.interface.yaml
@@ -0,0 +1,9 @@
+description: >
+    Implement to provide drive state management.
+
+properties:
+    - name: Rebuilding
+      type: boolean
+      default: false
+      description: >
+          Describes if the drive is currently rebuilding.