mboxd: Rename lpc source files

Change-Id: I289618c90b2df8911e362397b7eab99403c86c05
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/control.c b/control.c
index 98bed09..36dd542 100644
--- a/control.c
+++ b/control.c
@@ -6,7 +6,7 @@
 #include "dbus.h"
 #include "mbox.h"
 #include "flash.h"
-#include "mboxd_lpc.h"
+#include "lpc.h"
 #include "mboxd_msg.h"
 #include "mboxd_windows.h"