superio/common/conf_mode.c: Introduce 'new' enter/exit keys for SIO's

Super I/O manufactures have found new and innovative ways to enter
and exit out of LDN config in PNP config space.

Change-Id: Id3f5882664f1b2b18b49f32373430cf4b037ad22
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7308
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
diff --git a/src/include/superio/conf_mode.h b/src/include/superio/conf_mode.h
index 9f7e3e6..2aca8c1 100644
--- a/src/include/superio/conf_mode.h
+++ b/src/include/superio/conf_mode.h
@@ -25,13 +25,19 @@
 
 /* Common enter/exit implementations */
 void pnp_enter_conf_mode_55(struct device *dev);
+void pnp_enter_conf_mode_6767(struct device *dev);
+void pnp_enter_conf_mode_7777(struct device *dev);
 void pnp_enter_conf_mode_8787(struct device *dev);
+void pnp_enter_conf_mode_a0a0(struct device *dev);
 void pnp_exit_conf_mode_aa(struct device *dev);
 void pnp_enter_conf_mode_870155aa(struct device *dev);
 void pnp_exit_conf_mode_0202(struct device *dev);
 
 extern const struct pnp_mode_ops pnp_conf_mode_55_aa;
+extern const struct pnp_mode_ops pnp_conf_mode_6767_aa;
+extern const struct pnp_mode_ops pnp_conf_mode_7777_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_8787_aa;
+extern const struct pnp_mode_ops pnp_conf_mode_a0a0_aa;
 extern const struct pnp_mode_ops pnp_conf_mode_870155_aa;
 
 #endif /* DEVICE_PNP_CONF_MODE_H */