[SERIAL] Add new port numbers.

This adds the new port numbers which are in use in MAC and PARISC
trees (so other people know they're taken.)

include/linux/serial_core.h

@@ -67,6 +67,15 @@
 #define PORT_PC9861	45
 #define PORT_PC9801_101	46
 
+/* DZ */
+#define PORT_DZ		47
+
+/* Parisc type numbers. */
+#define PORT_MUX	48
+
+/* Macintosh Zilog type numbers */
+#define PORT_MAC_ZILOG	50	/* m68k : not yet implemented */
+#define PORT_PMAC_ZILOG	51
 
 #ifdef __KERNEL__