Support path for AWS config and credentials

[huw0]

It would be helpful when mounting efs volumes with awsprofile to also be able to pass the path to the profile to easily allow existing config for non-root users.

[bahildebrand]

Thanks for the feedback. We'll collect feedback on the priority of this feature. If you'd like to submit a PR we'd be more than happy to work with you on merging the changes.

[briantist]

I had this same issue, but was able to work around it by setting AWS_CONFIG_FILE in the call, for example:

sudo AWS_CONFIG_FILE=/path/to/.aws/config mount -t efs ....