phosphor-ipmi-flash: Add function2 dependency

This will be used by an incoming change.

Change-Id: Id406c980c169f9e5d60029ff405875669829c5e2
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/recipes-phosphor/ipmi/phosphor-ipmi-flash_git.bb b/recipes-phosphor/ipmi/phosphor-ipmi-flash_git.bb
index 3af0c3c..cd7ece2 100644
--- a/recipes-phosphor/ipmi/phosphor-ipmi-flash_git.bb
+++ b/recipes-phosphor/ipmi/phosphor-ipmi-flash_git.bb
@@ -17,6 +17,7 @@
 DEPENDS += "systemd"
 DEPENDS += "ipmi-blob-tool"
 DEPENDS += "pciutils"
+DEPENDS += "function2"
 
 PACKAGECONFIG ?= "cleanup-delete"
 PACKAGECONFIG[cleanup-delete] = "--enable-cleanup-delete, --disable-cleanup-delete"