ANDROID: GKI: update mtktv symbol

8 function symbol(s) added
  'int tty_termios_hw_change(const struct ktermios*, const struct ktermios*)'
  'void usb_serial_deregister_drivers(struct usb_serial_driver* const*)'
  'void usb_serial_generic_close(struct usb_serial_port*)'
  'int usb_serial_generic_get_icount(struct tty_struct*, struct serial_icounter_struct*)'
  'int usb_serial_generic_open(struct tty_struct*, struct usb_serial_port*)'
  'void usb_serial_generic_throttle(struct tty_struct*)'
  'void usb_serial_generic_unthrottle(struct tty_struct*)'
  'int usb_serial_register_drivers(struct usb_serial_driver* const*, const char*, const struct usb_device_id*)'

Bug: 333812874
Bug: 333350374
Change-Id: Ie1ea35a1c6795adef7d5fd65f9fc29f855d683bb
Signed-off-by: yenchia.chen <yenchia.chen@mediatek.com>
(cherry picked from commit f395ea09)