stm32l0xx: Add stm32l0xx_ll_usb to CMakeLists

Some STM32L0 SoCs contain a USB device controller. Add the LL USB HAL
to enable USB support in Zephyr.

Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
1 file changed
tree: 625f2694a86e2b43e0b7a40ee113cea1fdf53b3b
  1. CMakeLists.txt
  2. README.rst
  3. lib/
  4. scripts/
  5. stm32cube/
  6. zephyr/