Write the entire *foo-AREA-DATA* vector when generating the cold image.
Write the entire *foo-AREA-DATA* vector when generating the cold image.

These vectors and the area sizes are both 2MB aligned. Writing the
entire vector out prevents uninitialized data from being left between
the bump pointer and the end of the area, which would then be returned
by the low level allocation functions.

varjagg/Mezzano,rvedam/Mezzano,froggey/Mezzano,varjagg/Mezzano,rvedam/Mezzano,AugustusHuang/Mezzano,AugustusHuang/Mezzano,froggey/Mezzano