usb: hub: verify device is configured in usb_device_may_initiate_lpm()

Move device configured check into usb_device_may_initiate_lpm() instead
of calling it before the function.

No functional changes, helps rework to fail faster during link power
management (LPM) enabling.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250314142000.93090-3-mathias.nyman@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>