third_party/stm32cube: stm32cube_headers vis
third_party/stm32cube: stm32cube_headers vis

Added pw_third_party_stm32cube_CORE_INIT to visibility
list.

Change-Id: I4f98175d2f7303171a9870afa260568a0030c19f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/84748
Reviewed-by: Armando Montanez <97ef6fdb231c129ac8827d9f0c4106bfbf57f74f@google.com>
Commit-Queue: Armando Montanez <97ef6fdb231c129ac8827d9f0c4106bfbf57f74f@google.com>

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed