usb: musb: pass platform_ops via platform_data

... then we don't need to export any symbols
from glue layer to musb_core.

Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/am35x.c

@@ -530,7 +530,7 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
 	}
 }
 
-const struct musb_platform_ops musb_ops = {
+static const struct musb_platform_ops am35x_ops = {
 	.init		= am35x_musb_init,
 	.exit		= am35x_musb_exit,
 
@@ -572,6 +572,8 @@ static int __init am35x_probe(struct platform_device *pdev)
 	glue->dev			= &pdev->dev;
 	glue->musb			= musb;
 
+	pdata->platform_ops		= &am35x_ops;
+
 	platform_set_drvdata(pdev, glue);
 
 	ret = platform_device_add_resources(musb, pdev->resource,