SPU TFM non-secure alignment assert fails for custom partition solution

[3Nigma]

This commit introduced an assert to guard against region misalignments of the TF-M non-secure partitions with regards to the SPU region.

This works well for stock partition definitions, but has a high degree of failures for most partition-manager solutions that require an increased app space configuration.

Disabling the compile-time alignment assertion check can be a temporary fix, but a more general fix is required.

Opening this ticket to keep track of this issue and allowing our citadel-wallet development to continue.

This currently affects sdk-nrf version v2.3.0.