soc: intel_adsp/ace: zero out memory at ram init
soc: intel_adsp/ace: zero out memory at ram init

There is an assumption in parse_module() during code/data copying
that the memory has already been zero-ed, and hence no need to
clear memory when a BSS segment is encountered. In CAVS ram
initialization code, bbzero() is called. However, in ACE code,
there is no such call. So add them.

Signed-off-by: Daniel Leung <d94e04d205b5962d7873a139ef298b03c1717f72@intel.com>

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