nrf: Debugging any test fails when CORTEX_M_DEBUG_NULL_POINTER_EXCEPTION_DETECTION_DWT is enabled

[nordic-krch]

Describe the bug
Nordic board by default has null pointer detection using DWT enabled in all tests. As a result, any test fails in debug session and ends in the assert during startup

zephyr/arch/arm/include/aarch32/cortex_m/dwt.h

Line 151 in 76f35f2

__ASSERT((CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) == 0,

To Reproduce
Steps to reproduce the behavior:

1. start debug session for any test on nordic SoC.

Expected behavior
Debug session of the test application should be ready without need to dig deep into very specific arch options.

Impact
Annoyance. User is wasting time to figure out what is wrong.

Environment (please complete the following information):

• OS: (e.g. Linux, MacOS, Windows)
• Toolchain (e.g Zephyr SDK, ...)
• Commit SHA or Version used

Additional context
Commit SHA: 16d2ab7

[nordic-krch]

fyi @ioannisg

[nashif]

closing as duplicate of #34222