ANDROID: GKI: Update rockchip symbols for some customers.

INFO: 8 function symbol(s) added
  'void serial8250_clear_and_reinit_fifos(struct uart_8250_port*)'
  'void serial8250_do_set_divisor(struct uart_port*, unsigned int, unsigned int, unsigned int)'
  'void serial8250_do_set_ldisc(struct uart_port*, struct ktermios*)'
  'int serial8250_em485_config(struct uart_port*, struct ktermios*, struct serial_rs485*)'
  'void serial8250_em485_start_tx(struct uart_8250_port*)'
  'void serial8250_em485_stop_tx(struct uart_8250_port*)'
  'void serial8250_update_uartclk(struct uart_port*, unsigned int)'
  'int tty_termios_hw_change(const struct ktermios*, const struct ktermios*)'

1 variable symbol(s) added
  'struct serial_rs485 serial8250_em485_supported'

Bug: 300024866
Signed-off-by: Bian Jin chen <kenjc.bian@rock-chips.com>
Change-Id: I4a111fefebf8a7df6053f84c817e3e90e808d6c7