Modify Maximum number of 8250/16550 serial ports to 5

Change-Id: I26f7f0fff4a352487b60e1bc30a94d30c6e0b985
Reviewed-on: https://tp-biosrd-v02/gerrit/80436
Reviewed-by: Scorpio Chang(張志賢) <Scorpio_Chang@asus.com>
Tested-by: Scorpio Chang(張志賢) <Scorpio_Chang@asus.com>

Author: scorpiochang

drivers/tty/serial/8250/Kconfig

@@ -138,7 +138,7 @@ config SERIAL_8250_CS
 config SERIAL_8250_NR_UARTS
 	int "Maximum number of 8250/16550 serial ports"
 	depends on SERIAL_8250
-	default "4"
+	default "5"
 	help
 	  Set this to the number of serial ports you want the driver
 	  to support.  This includes any ports discovered via ACPI or
@@ -149,7 +149,7 @@ config SERIAL_8250_RUNTIME_UARTS
 	int "Number of 8250/16550 serial ports to register at runtime"
 	depends on SERIAL_8250
 	range 0 SERIAL_8250_NR_UARTS
-	default "4"
+	default "5"
 	help
 	  Set this to the maximum number of serial ports you want
 	  the kernel to register at boot time.  This can be overridden