The CpuBreakPoint in UserMisc normally shouldn't enter dead-loop
condition, instead it should break the program using abort signal. Also
sets DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit by default in
PcdDebugPropertyMask. As a background was a problem with fuzzing when
program process falls into dead-loop condition instead of just to exit
with crash
This is required to support Apple-made images that have .data with RWX
permissions. Found in EfiBoot, APFS, HFS, ExFat, etc.
closesacidanthera/bugtracker#2190
