drivers: display: ssd1306: fix reset

The recommended reset sequence from the datasheet is as follows:

  void SSD1309 ()
  {
  	RES=0;
  	delay(1000);
  	RES=1;
  	delay(1000);
  	..

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>