ipmi: start implementing flashHashFinish

Change-Id: I354b346bcd2d0dd141fd21a84e57cd7c06eadc1a
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/flash-ipmi.cpp b/flash-ipmi.cpp
index ab294c3..35f8ad2 100644
--- a/flash-ipmi.cpp
+++ b/flash-ipmi.cpp
@@ -61,3 +61,9 @@
     /* TODO: implement. */
     return false;
 }
+
+bool FlashUpdate::hashFinish()
+{
+    /* TODO: implement. */
+    return false;
+}