Driver: gpio: Add support of Open Drain GPIO for STM32

[Benichou34]

Add ability to configure an output GPIO as Open Drain.
Add GPIO_OPEN_DRAIN flags for use with gpio_pin_configure.

[codecov-io]

Codecov Report

Merging #13190 into master will decrease coverage by 4.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #13190      +/-   ##
==========================================
- Coverage   53.05%   48.86%   -4.19%     
==========================================
  Files         313      317       +4     
  Lines       45706    46810    +1104     
  Branches    10584    10818     +234     
==========================================
- Hits        24248    22873    -1375     
- Misses      16547    19366    +2819     
+ Partials     4911     4571     -340

Impacted Files	Coverage Δ
lib/libc/minimal/include/stdlib.h	0% <0%> (-100%)	⬇️
...ys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.h	0% <0%> (-88%)	⬇️
subsys/bluetooth/controller/ll_sw/ull_slave.c	0% <0%> (-81.77%)	⬇️
...oth/controller/ll_sw/nordic/lll/lll_adv_internal.h	0% <0%> (-76.48%)	⬇️
.../bluetooth/controller/ll_sw/nordic/lll/lll_slave.c	0% <0%> (-65.52%)	⬇️
...ys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.c	2.16% <0%> (-55.85%)	⬇️
subsys/bluetooth/controller/ll_sw/ull_adv.c	5.45% <0%> (-43.18%)	⬇️
subsys/net/ip/dhcpv4.c	6.14% <0%> (-35.39%)	⬇️
subsys/bluetooth/controller/ll_sw/ull_conn.c	16.67% <0%> (-33.4%)	⬇️
subsys/bluetooth/controller/ll_sw/ull_sched.c	50% <0%> (-33.34%)	⬇️
... and 199 more

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[mnkp]

Zephyr aims to be compatible with Linux DTS. The relevant bindings for the GPIO node are defined in Linux's dt-bindings gpio.h. To fulfill this requirement the flag to configure open drain mode should be called GPIO_OPEN_DRAIN. gpio_stm32.c needs to be updated.

There is no need to modify include/dt-bindings/gpio/gpio.h file since there exists already PR #12651 which attempts to add the flag (along with several others).

[Benichou34]

Renamed GPIO_PUD_OPEN_DRAIN by GPIO_OPEN_DRAIN.
I waiting for PR #12651.

[erwango]

@Benichou34

I waiting for PR #12651.

PR #12651 has been closed. Any other plans vs current PR?

[Benichou34]

Superseded by PR #16648