tty: serial: samsung_tty: use 'unsigned int' not 'unsigned'

The function uart_console_write() expects an unsigned int, so use that
variable type, not 'unsigned', which is generally frowned apon in the
kernel now.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Hyunki Koo <kkoos00@naver.com>
Cc: HYUN-KI KOO <hyunki00.koo@samsung.com>
Cc: Shinbeom Choi <sbeom.choi@samsung.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191210143706.3928480-8-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/samsung_tty.c

@@ -2613,7 +2613,8 @@ static void samsung_early_putc(struct uart_port *port, int c)
 	writeb(c, port->membase + S3C2410_UTXH);
 }
 
-static void samsung_early_write(struct console *con, const char *s, unsigned n)
+static void samsung_early_write(struct console *con, const char *s,
+				unsigned int n)
 {
 	struct earlycon_device *dev = con->data;