omap: musb: introduce default board config

Most boards use exactly the same configuration for musb initialization.
Create a default that can be shared amount different boards.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c
index 7ad2d7f..e152c13 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -553,12 +553,6 @@
 };
 #endif
 
-static struct omap_musb_board_data musb_board_data = {
-	.interface_type		= MUSB_INTERFACE_ULPI,
-	.mode			= MUSB_OTG,
-	.power			= 100,
-};
-
 static void __init overo_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
@@ -567,7 +561,7 @@
 	omap_serial_init();
 	omap_nand_flash_init(0, overo_nand_partitions,
 			     ARRAY_SIZE(overo_nand_partitions));
-	usb_musb_init(&musb_board_data);
+	usb_musb_init(NULL);
 	usbhs_init(&usbhs_bdata);
 	overo_spi_init();
 	overo_ads7846_init();