Twister failing due to missing nrf-regtool

[rettichschnidi]

Describe the bug

To Reproduce

Steps to reproduce the behavior:

1. twister --all -s sample.drivers.crypto.mbedtls
2. Encounter various build errors for nrf54h20dk and nrf9280pdk boards:

INFO    - The following issues were found (showing the top 10 items):
INFO    - 1) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf9280pdk/nrf9280/cpuapp error (Cmake build failure)
INFO    - 2) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf9280pdk/nrf9280/cpuppr/xip error (Cmake build failure)
INFO    - 3) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf9280pdk/nrf9280/cpurad error (Cmake build failure)
INFO    - 4) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpuapp error (Cmake build failure)
INFO    - 5) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpuppr error (Cmake build failure)
INFO    - 6) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpuppr/xip error (Cmake build failure)
INFO    - 7) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpurad error (Cmake build failure)
INFO    - 8) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpuflpr error (Cmake build failure)
INFO    - 9) samples/drivers/crypto/sample.drivers.crypto.mbedtls on nrf54h20dk/nrf54h20/cpuflpr/xip error (Cmake build failure)

Expected behavior

Running twister successfully on all supported architectures without needing to install extra/undocumented dependencies.

Impact

Can not run Twister for all architecture without encountering errors.

Logs and console output

The errors in build.log files look like this:

CMake Error at <snip>/zephyr/modules/hal_nordic/CMakeLists.txt:15 (find_package):
  Could not find a configuration file for package "nrf-regtool" that is
  compatible with requested version "5.6.0".

  The following configuration files were considered but not accepted:

    <snip>/modules/hal_nordic/nrf-regtool/nrf-regtoolConfig.cmake, version: unknown

Environment (please complete the following information):

• OS: Linux
• Toolchain: Zephyr SDK 0.16.8
• Commit: 44d101a

Workaround

• pip install nrf-regtool