at91: move cpu name define to arm/arch/ cpu header

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/asm-arm/arch-at91/at91sam9263.h b/include/asm-arm/arch-at91/at91sam9263.h
index 07b265f..966a683 100644
--- a/include/asm-arm/arch-at91/at91sam9263.h
+++ b/include/asm-arm/arch-at91/at91sam9263.h
@@ -124,5 +124,9 @@
 #define AT91SAM9263_DMAC_BASE	0x00800000	/* DMA Controller */
 #define AT91SAM9263_UHP_BASE	0x00a00000	/* USB Host controller */
 
+/*
+ * Cpu Name
+ */
+#define AT91_CPU_NAME	"AT91SAM9263"
 
 #endif