Update UART driver API (#14839)

* Add uart_puts() and uart_gets()

* Add some docs

* Rework API

* Formatting

* Update docs/uart_driver.md

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>

* Simplify a uart_write() loop

* Update platforms/avr/drivers/uart.c

Co-authored-by: Joel Challis <git@zvecr.com>

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>

Merge remote-tracking branch 'origin/master' into develop

Fix hebrew emoji in langs.md (#15140)

[Keyboard] Add space between Cradio info.json layout (#15127)

Co-authored-by: filterpaper <filterpaper@localhost>

add wait to unicode for win (#15061)

Co-authored-by: Markus Fritsche <fritsche.markus@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

[Docs] Correct logic of tap hold statement (#14992)

Co-authored-by: filterpaper <filterpaper@localhost>

matrix/abelx - Update ChibiOS conf files (#15130)

* Fix obsolete or unknown configuration file

* use qmk chibios-confmigrate

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Add JadooKB JKB2 (#15036)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Update a_dux info.json (#15126)

Co-authored-by: filterpaper <filterpaper@localhost>

[Keyboard] Add Chalice Support (#15106)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

[Docs] Codify not using code from other keyboards in PRs (#15128)

* [Docs] Codify not using code from other keyboards in PRs

* add additional comments

gcc10 LTO - Only specify adhlns assembler options at link time (#15115)

* gcc10 LTO - Only specify adhlns assembler options at link time

* Default adhlns off?

Merge remote-tracking branch 'origin/master' into develop

Fix obsolete or unknown configuration file (#15129)

Merge remote-tracking branch 'origin/master' into develop

Avoid MATRIX_*_PINS due to schema validation errors (#15123)