Updated managed_disk resource for disk_size_gb updates#5579

Merged

jackofallops merged 2 commits intomasterfrom b/update-managed-disks-attachment

Feb 3, 2020

+316-12

Commits on Jan 31, 2020

Updated managed_disk resource to properly manage attached VM for update to size
jackofallops
committed

Commits on Feb 3, 2020

Added locking around VM resource for disk operations
jackofallops
committed