Convert host-ipmid -> libipmid

phosphor-host-ipmid now exposes a library along with headers for
interfacing with the ipmi daemon. Compile and link against the new
library.

Change-Id: I663e6607f711bc8bae0a2127db524868f6d4cc32
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/ipmi.hpp b/ipmi.hpp
index db77836..b79b1ee 100644
--- a/ipmi.hpp
+++ b/ipmi.hpp
@@ -2,7 +2,7 @@
 
 #include "manager.hpp"
 
-#include <host-ipmid/ipmid-api.h>
+#include <ipmid/api.h>
 
 #include <blobs-ipmid/blobs.hpp>
 #include <string>