tty: serial: 8250: Fix indentation warnings

Checkpatch complains about incorrect indentation of switch/case statements.
This patch fixes the corresponding warnings. Additionally some indentation
is changed to match the correct format specified in the Linux Kernel
Coding Style.
Signed-off-by: NAnton Würfel <anton.wuerfel@fau.de>
Signed-off-by: NPhillip Raffeck <phillip.raffeck@fau.de>
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@i4.cs.fau.de
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_port.c

@@ -2469,8 +2469,8 @@ static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,
 		serial_port_out(port, 0x2, quot_frac);
 }
 
-static unsigned int
-serial8250_get_baud_rate(struct uart_port *port, struct ktermios *termios,
+static unsigned int serial8250_get_baud_rate(struct uart_port *port,
+					     struct ktermios *termios,
 					     struct ktermios *old)
 {
 	unsigned int tolerance = port->uartclk / 100;