ARM: OMAP1: Move flash.h from plat to mach

This is only used by omap1.

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 3ef0bba..2f1f9b9 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -46,7 +46,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
-#include <plat/flash.h>
+#include <mach/flash.h>
 #include <mach/mux.h>
 #include <plat/tc.h>