Allow out-of-tree builds

Change-Id: If4b97e65f63c3abbf23140dd97b9febe00b3be0d
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/chassishandler.cpp b/chassishandler.cpp
index 1df4c0a..2952725 100644
--- a/chassishandler.cpp
+++ b/chassishandler.cpp
@@ -1,5 +1,5 @@
 #include "chassishandler.h"
-#include "ipmid-api.h"
+#include "host-ipmid/ipmid-api.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>