There is no reason to do serial initializationin low level code. Uart
driver does it already based on DT.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Xilinx DLC20 has I2C0 with EEPROM(1KB), UART1, GPIO, SD0 (EMMC 4GB),
USB0 device, ENET0, QSPI (16MB) and DDR(two of 256MB each).
Boards have mix of Winbond/ST QSPIs.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>