mpc83xx: add QE ethernet support

this patch adds support for the QUICC Engine based UCC gigabit ethernet device.
diff --git a/include/ioports.h b/include/ioports.h
index d7e19e1..91ca6fb 100644
--- a/include/ioports.h
+++ b/include/ioports.h
@@ -53,3 +53,14 @@
  * like the table in the 8260UM (and in the hymod manuals).
  */
 extern const iop_conf_t iop_conf_tab[4][32];
+
+typedef struct {
+	unsigned char	port;
+	unsigned char	pin;
+	int		dir;
+	int		open_drain;
+	int		assign;
+} qe_iop_conf_t;
+
+#define QE_IOP_TAB_END	(-1)
+