dt-bindings: usb: mpfs-musb: permit resets

dt-bindings: usb: mpfs-musb: permit resets

The musb IP on mpfs and pic64gx has a reset pin, but until now this has
been undocumented because platform firmware takes the block out of reset
on first-party boards (or those using modified versions of the vendor
firmware), but not all boards may take this approach. Permit providing a
reset in devicetree for Linux, or other devicetree-consuming software,
to use.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260303-backspace-unhearing-c6cc8cbddbba@spud
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>