drivers: watchdog: align sample and test to new DT

[kl-cruz]

Sample application and test are aligned to new DT naming convention.

Signed-off-by: Karol Lasończyk karol.lasonczyk@nordicsemi.no

[codecov-io]

Codecov Report

Merging #12468 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #12468   +/-   ##
=======================================
  Coverage   49.72%   49.72%           
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  Files         292      292           
  Lines       42425    42425           
  Branches     9968     9968           
=======================================
  Hits        21096    21096           
  Misses      17178    17178           
  Partials     4151     4151

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[anangl]

These are changes not in the nRF watchdog driver but in the sample and test for all watchdog drivers, so both the commit and PR should be titled "drivers: watchdog: Align ...".
The label CONFIG_WDT_0_NAME is still present in fixups for several SoCs. These occurrences should also be renamed. Hopefully, this renaming will make the CI green.

[kl-cruz]

@anangl Thanks for this. I'll check it and intruduce required changes

[kl-cruz]

@MaureenHelm , Could you look at it? Small changes, but can be interesting for you!

[kl-cruz]

These are changes not in the nRF watchdog driver but in the sample and test for all watchdog drivers, so both the commit and PR should be titled "drivers: watchdog: Align ...".
The label CONFIG_WDT_0_NAME is still present in fixups for several SoCs. These occurrences should also be renamed. Hopefully, this renaming will make the CI green.

@anangl I fixed it in some other way. Please check my solution!