Openocd: added script to reset device (backport #399)

[mergify]

This is an automatic backport of pull request #399 done by Mergify.
Cherry-pick of 7a2aeaf has failed:

On branch mergify/bp/galactic/pr-399
Your branch is up to date with 'origin/galactic'.
You are currently cherry-picking commit 7a2aeaf.
(fix conflicts and run "git cherry-pick --continue")
(use "git cherry-pick --skip" to skip this patch)
(use "git cherry-pick --abort" to cancel the cherry-pick operation)
Changes to be committed:
modified: CMakeLists.txt
new file: config/freertos/nucleo_f446re/reset.sh
new file: config/freertos/nucleo_f446ze/reset.sh
new file: config/freertos/nucleo_f746zg/reset.sh
new file: config/freertos/nucleo_f767zi/reset.sh
new file: config/freertos/olimex-stm32-e407/reset.sh
new file: config/host/generic/reset.sh
modified: config/raspbian/generic/flash.sh
new file: config/zephyr/generic/reset.sh
new file: scripts/reset_firmware.sh
Unmerged paths:
(use "git add <file>..." to mark resolution)
added by them: config/android/generic/reset.sh

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[pablogs9]

@Acuadros95 Is this ready for merging?