Bump libopencm3 from `8feb711` to `4db40e0`

Bumps libopencm3 from 8feb711 to 4db40e0.

Commits

- [`4db40e0`](https://github.com/libopencm3/libopencm3/commit/4db40e08394fdc6742f9117f3098d23a5de2bd95) stm32f7: Include i2c_common_v2 - [`edb39d4`](https://github.com/libopencm3/libopencm3/commit/edb39d43eece2276b03f80abee95626d11763895) HACKING: update link to kernel code style doc - [`330d5fd`](https://github.com/libopencm3/libopencm3/commit/330d5fd5be46afa8417babd95357e90e78557b1e) gd32: add new chip series f1x0 - [`d109a1d`](https://github.com/libopencm3/libopencm3/commit/d109a1ddeb6cd323deb77e178c088b77c5910ed0) readme: fix link to template - [`0fd4f74`](https://github.com/libopencm3/libopencm3/commit/0fd4f74ee301af5de4e9b036f391bf17c5a52f02) stm32f1: adc: fixed deprecated/broken example code - [`8064f6d`](https://github.com/libopencm3/libopencm3/commit/8064f6d0cbaca9719c25ee74af115f90deb2b3a0) stm32f4: fmc: add missing DECLS wrappers - [`c4c0d14`](https://github.com/libopencm3/libopencm3/commit/c4c0d14ea4ef81601de95d811a7093976f1e47f1) stm32: exti: stm32g0 have enhanced EXTI_[FR]PR regs instead of EXTIR_PR, use ... - [`b98dd8e`](https://github.com/libopencm3/libopencm3/commit/b98dd8eee02147abbd92f9b31f59ddedcba0e177) stm32: exti: exti_select_source: rework and use EXTI_EXTICR. - [`553c876`](https://github.com/libopencm3/libopencm3/commit/553c876fa5b81f4a3ba1bcd0714e95552f100e00) stm32: exti: define AFIO/SYSCFG_EXTICR_FIELDSIZE for all chip. - [`7afd86d`](https://github.com/libopencm3/libopencm3/commit/7afd86db3093044ecbd9d90ffafd4fd8da31f306) stm32l[01]: flash common: add flash_unlock_acr, allowing to unlock FLASH_ACR ... - Additional commits viewable in [compare view](https://github.com/libopencm3/libopencm3/compare/8feb711ca0975808b8604903e44eefe48926ca46...4db40e08394fdc6742f9117f3098d23a5de2bd95)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot ignore this [patch|minor|major] version` will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) - `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language - `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com): - Update frequency (including time of day and day of week) - Automerge options (never/patch/minor, and dev/runtime dependencies) - Pull request limits (per update run and/or open at any time) - Out-of-range updates (receive only lockfile updates, if desired) - Security updates (receive only security updates, if desired) Finally, you can contact us by mentioning @dependabot.

im-tomu / tomu-samples

Bump libopencm3 from `8feb711` to `4db40e0` #45