ARM: OMAP: rx51: change musb mode to OTG

Peripheral-only mode got broken in v3.11-rc1 because of unknown reasons.
Change the mode to OTG, in practice that should work equally well even
when/if the regression gets fixed.

Note that the peripheral-only regression is a separate patch, this change
is still correct as the role is handled by hardware.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-omap2/board-rx51.c

@@ -85,7 +85,7 @@ static struct omap_board_mux board_mux[] __initdata = {
 
 static struct omap_musb_board_data musb_board_data = {
 	.interface_type		= MUSB_INTERFACE_ULPI,
-	.mode			= MUSB_PERIPHERAL,
+	.mode			= MUSB_OTG,
 	.power			= 0,
 };