ARM: OMAP: Make FS USB omap1 only

As the FS USB code is not being actively used for omap2+
there's no point keeping it around for omap2+.

Let's make the FS USB platform init code omap1 only so
we can remove the last user of omap_read/write for omap2+,
and simplify things for further USB, DMA, and device tree
related work.

While at it, also group the mach includes for the related
drivers.

Cc: linux-usb@vger.kernel.org
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 7212ae9..4007a37 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -26,7 +26,6 @@
 #include <asm/mach/map.h>
 
 #include <plat/mux.h>
-#include <plat/usb.h>
 #include <plat/board.h>
 #include <plat/keypad.h>
 #include <plat/lcd_mipid.h>
@@ -34,6 +33,7 @@
 #include <plat/clock.h>
 
 #include <mach/hardware.h>
+#include <mach/usb.h>
 
 #include "common.h"