ARM: OMAP: Add missing includes to board-nokia770

Add missing includes to board-nokia770 to make it
compile again.

Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-nokia770.c

@@ -16,6 +16,8 @@
 
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>