[ARM] 3865/1: AT91RM9200 header updates

This is more preparation for adding support for the new Atmel AT91SAM9
processors.

Changes include:
- Replace AT91_BASE_* with AT91RM9200_BASE_*
- Replace AT91_ID_* with AT91RM9200_ID_*
- ROM, SRAM and UHP address definitions moved to at91rm9200.h.
- The raw AT91_P[ABCD]_* definitions are now depreciated in favour of
the GPIO API.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/at91_serial.c b/drivers/serial/at91_serial.c
index 54c6b2a..bf4bf10 100644
--- a/drivers/serial/at91_serial.c
+++ b/drivers/serial/at91_serial.c
@@ -139,7 +139,7 @@
 		 * AT91RM9200 Errata #39: RTS0 is not internally connected to PA21.
 		 *  We need to drive the pin manually.
 		 */
-		if (port->mapbase == AT91_BASE_US0) {
+		if (port->mapbase == AT91RM9200_BASE_US0) {
 			if (mctrl & TIOCM_RTS)
 				at91_set_gpio_value(AT91_PIN_PA21, 0);
 			else