at91_emac.h: fix typo in register definition

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Jens Scharsig <js_at_ng@scharsoft.de>
diff --git a/arch/arm/include/asm/arch-at91/at91_emac.h b/arch/arm/include/asm/arch-at91/at91_emac.h
index 45ae333..0e2ff78 100644
--- a/arch/arm/include/asm/arch-at91/at91_emac.h
+++ b/arch/arm/include/asm/arch-at91/at91_emac.h
@@ -61,7 +61,7 @@
 	u32	 reserved2[3];
 	u32	 hsh;
 	u32	 hsl;
-	u32	 sh1l;
+	u32	 sa1l;
 	u32	 sa1h;
 	u32	 sa2l;
 	u32	 sa2h;