Update aws.rst

Added undocumented feature for Ebs.VolumeType to the example so people do not need to read the source to identify how to change the EBS volume Type:
Update aws.rst

added additional component for Ebs.
Update aws.rst

Updated the document to reflect a storage type that would work. Currently only gp2 and standard function because there is no support for the provisioned iops
Update aws.rst

remove note it was a typo
Merge branch 'master' of https://github.com/jimmystewpot/salt into jimmystewpot-master

Conflicts:
	doc/topics/cloud/aws.rst
Merge branch 'jimmystewpot-master' into develop