zephyr/boards/st/stm32l1_disco/board.yml

boards:
  - name: stm32l1_disco
    full_name: STM32L1 Discovery
    vendor: st
    socs:
      - name: stm32l151xb
  - name: stm32l152c_disco
    full_name: STM32L152C Discovery
    vendor: st
    socs:
      - name: stm32l152xc