fix CLStream memcpy read 1 extra byte

[xiaokang]

It should only copy the length passed from argument, instead of length + 1, which may cause ASAN global-buffer-overflow.

 void init(const void *_value, int32_t _length, bool copyData = true) override {
const size_t length = _length;
this->pos = 0;
if (copyData) {
T *tmp = (T *) this->value;
if (tmp == NULL || !this->ownValue) {
tmp = _CL_NEWARRAY(T, length + 1);
this->buffer_size = length;
} else if (length > this->buffer_size || length < (this->buffer_size / 2)) {//expand, or shrink
tmp = (T *) realloc(tmp, sizeof(T) * (length + 1));
this->buffer_size = length;
}
memcpy(tmp, _value, length + 1); ///////////////// THIS IS THE BUGGY LINE //////////
this->value = tmp;
} else {
if (ownValue && this->value != NULL) {
_CLDELETE_LARRAY((T *) this->value);
}
this->value = (T *)_value;
this->buffer_size = 0;
}
this->m_size = length;
this->ownValue = copyData;
};