usb: otg: Add device tree parameter clk-always-on-workaround

The clk-always-on-workaround parameter allows to keep the USB
clocks active upon USB bus suspend when the cable is connected.
This is required for the USB core to respond to remote wakeup.
Add a read for this parameter also for targets which use device tree.

Change-Id: I1feb2bab6cbbcc406dfcc219b33ba7e9f4ea3807
Signed-off-by: Ido Shayevitz <idos@codeaurora.org>
2 files changed