[ARM] 4863/1: AT91: CAP9 USART definitions for early debug

Define AT91_USART0, 1, 2 so the selection of the UART for early kernel
messages works.
   (See commit fa3218d8).

Replace AT91_SHDC with AT91_SHDWC to be consistent with other AT91 platforms.
Signed-off-by: NAndrew Victor <linux@maxim.org.za>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

include/asm-arm/arch-at91/at91cap9.h

@@ -97,12 +97,17 @@
 #define AT91_PIOD	(0xfffff800 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDC	(0xfffffd10 - AT91_BASE_SYS)
+#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
 #define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
 #define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
 #define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd50 - AT91_BASE_SYS)
 
+#define AT91_USART0	AT91CAP9_BASE_US0
+#define AT91_USART1	AT91CAP9_BASE_US1
+#define AT91_USART2	AT91CAP9_BASE_US2
+
+
 /*
  * Internal Memory.
  */