Update acloud_kernel and goldfish_compute_client + others to be pylint compliant.

- According to 4 spaces, the code modified base on the rule.
- Added pylint disable comments to avoid pylint error check.

Bug: None
Test: run pylint tools base on the file pylintrc CL 688459
      pylint public/acloud_kernel/acloud_kernel.py
      pylint public/acloud_kernel/kernel_swapper_test.py
      pylint public/acloud_kernel/kernel_swapper.py
      pylint internal/lib/goldfish_compute_client.py
      pylint internal/lib/goldfish_compute_client_test.py
      pylint internal/lib/driver_test_lib.py
      pylint internal/lib/utils.py
      pylint internal/lib/utils_test.py

Change-Id: Iab1d9aaed5d52f598feede9ab399af87b0fcdc81
9 files changed