drivers/usb/device: stm32: Update due to API change on F0/F3/L0

Following update of STM32Cube packages for series F0/L0/F3,
a new file ll_usb.h is now available for these series.
As a consequence, specific hanlding is no more requested for this
series is stm32 usb_device driver.

Fixes #21962

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>