usb: chipidea: using one inline function to cover queue work operations

The otg queue work include operations: one is disable interrupt,
another one is call kernel queue work API. Many codes do this
operation, using one inline function to instead of them.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>