Merge changes from topic "st-bsec-otp" into integration

* changes:
  feat(stm32mp2-fdts): add board ID OTP in STM32MP257F-EV1
  feat(stm32mp2-fdts): add OTP nodes in STM32MP251 SoC DT file
  fix(stm32mp2): add missing include
  feat(st): do not directly call BSEC functions in common code
  feat(st): use stm32_get_otp_value_from_idx() in BL31
  refactor(st): update test for closed chip
  refactor(st-bsec): improve BSEC driver
  refactor(st): use dashes for BSEC node names