Convert the following AT91RM9200-based boards to the new-style UART
initialization:
  - Conitec ARM&EVA
  - Atmel AT91RM9200-DK
  - Embest ATEB9200
  - Atmel AT91RM9200-EK
  - KwikByte KB920x
Signed-off-by: NAndrew Victor <linux@maxim.org.za>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>