mb/*/*/gpio: Use static for const structures
Autoport generates these structures as static so let's make it consistent.
See also commit
128205fd with Change-Id
I83382d38a4a3b7ed11b8e7077cc5fbe154e261a7 ("autoport/bd82x6x.go: Improve
gpio.c generation").
Change-Id: I4e07bd755ca4a65b76c69625d235a879fe7b43cb
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33524
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>