CUDA Python host allocation fixes
CUDA Python host allocation fixes

CUDA Python test results are now:

```
Ran 1201 tests in 65.175s

FAILED (failures=15, errors=139, skipped=41, expected failures=1)
```

cpcloud/numba,IntelLabs/numba,cpcloud/numba,IntelLabs/numba,seibert/numba,cpcloud/numba,cpcloud/numba,seibert/numba,numba/numba,numba/numba,IntelLabs/numba,seibert/numba,seibert/numba,seibert/numba,IntelLabs/numba,numba/numba,cpcloud/numba,IntelLabs/numba,numba/numba,numba/numba