drivers: tty: serial: uartlite: fix use fix bare 'unsigned'

Fix checkpatch warnings:

    WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
    torvalds#562: FILE: drivers/tty/serial/uartlite.c:562:
    +	unsigned retries = 1000000;

    WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
    torvalds#574: FILE: drivers/tty/serial/uartlite.c:574:
    +				 const char *s, unsigned n)

Signed-off-by: Enrico Weigelt <info@metux.net>

drivers/tty/serial/uartlite.c

@@ -556,7 +556,7 @@ static void early_uartlite_putc(struct uart_port *port, int c)
 	 * we'll never timeout on a working UART.
 	 */
 
-	unsigned retries = 1000000;
+	unsigned int retries = 1000000;
 	/* read status bit - 0x8 offset */
 	while (--retries && (readl(port->membase + 8) & (1 << 3)))
 		;
@@ -568,7 +568,7 @@ static void early_uartlite_putc(struct uart_port *port, int c)
 }
 
 static void early_uartlite_write(struct console *console,
-				 const char *s, unsigned n)
+				 const char *s, unsigned int n)
 {
 	struct earlycon_device *device = console->data;
 	uart_console_write(&device->port, s, n, early_uartlite_putc);