Out-of-bounds read in populateBufferWithCopy #417

[sumcai]

PopulateBufferWithCopy actually calls deMemcpy, use buffer access range size when copy data from blob.

void populateBufferWithCopy(void *buffer, VkDeviceSize size, const void *const blob)
{
    deMemcpy(buffer, blob, static_cast<size_t>(size));
}