superio/common/conf_mode: Provide another common pnp entry/exit

ITE Super I/O's make use of this method to enter and exit in and out of
their PNP configuration. Provide functions for use in ram stage
component.

Change-Id: I2b546c2b17eefc89aaab4982192f5e9a15a16c2f
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5666
Tested-by: build bot (Jenkins)
Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
diff --git a/src/include/superio/conf_mode.h b/src/include/superio/conf_mode.h
index b93b889..c49cae7 100644
--- a/src/include/superio/conf_mode.h
+++ b/src/include/superio/conf_mode.h
@@ -27,8 +27,11 @@
 void pnp_enter_conf_mode_55(device_t dev);
 void pnp_enter_conf_mode_8787(device_t dev);
 void pnp_exit_conf_mode_aa(device_t dev);
+void pnp_enter_conf_mode_870155aa(device_t dev);
+void pnp_exit_conf_mode_0202(device_t dev);
 
 extern const struct pnp_mode_ops pnp_conf_mode_55_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_8787_aa;
+extern const struct pnp_mode_ops pnp_conf_mode_870155_aa;
 
-#endif
+#endif /* DEVICE_PNP_CONF_MODE_H */