serial: add a new port type, found on some sh-mobile SoCs

Such ports are found, e.g., on SH7372.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

include/linux/serial_core.h

@@ -186,6 +186,9 @@
 #define PORT_ALTERA_JTAGUART	91
 #define PORT_ALTERA_UART	92
 
+/* SH-SCI */
+#define PORT_SCIFB	93
+
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>