boards/common/stm32: simplify ifdef logic

[Enoch247]

Contribution description

This patch just simplifies the the ifedef logic in a few shared stm32 headers, in support of the STM32H7 port.

Testing procedure

try running:

#! /bin/sh -e

boards=""
boards="$boards `ls -1 boards/ | grep stm32`"
boards="$boards `ls -1 boards/ | grep nucleo`"

for board in $boards
do
	make -C examples/blinky BOARD=$board
done

Issues/PRs references

none known

[riot-ci]

Murdock results

✔️ PASSED

3152301 boards/common/stm32: simplify ifdef logic

Success	Failures	Total	Runtime
10066	0	10066	11m:49s

Artifacts

• Documentation preview