dts: pinctrl: add autogenerated BKIN entries

Update pinctrl files using the genpinctrl script. BKIN signals are now
included after config files update.

(cherry picked from commit c865374fc83d93416c0f380e6310368ff55d6ce2)

Original-Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
GitOrigin-RevId: c865374fc83d93416c0f380e6310368ff55d6ce2
Change-Id: I68b41e739eb9e316439113af3139579391033fa8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/hal_stm32/+/4505662
Tested-by: Al Semjonovs <asemjonovs@google.com>
Commit-Queue: Al Semjonovs <asemjonovs@google.com>
Tested-by: CopyBot Service Account <copybot.service@gmail.com>
Reviewed-by: Al Semjonovs <asemjonovs@google.com>