InstanceIdDb: Move header from pldmd/ to common/

The header is used across all executables produced by the project, which
makes it "common".

Change-Id: I022b179fad1de8dba2ef39fd33bc240ec73a2d33
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
diff --git a/libpldmresponder/bios.hpp b/libpldmresponder/bios.hpp
index bb075d2..23f1318 100644
--- a/libpldmresponder/bios.hpp
+++ b/libpldmresponder/bios.hpp
@@ -2,8 +2,8 @@
 
 #include "bios_config.hpp"
 #include "bios_table.hpp"
+#include "common/instance_id.hpp"
 #include "pldmd/handler.hpp"
-#include "pldmd/instance_id.hpp"
 #include "requester/handler.hpp"
 
 #include <libpldm/bios.h>