require specific aws gems

app/models/file_depot_s3.rb

@@ -10,7 +10,8 @@ def self.validate_settings(settings)
  end
 
  def connect(options = {})
- require 'aws-sdk'
+ require 'aws-sdk-s3'
+
  username = options[:username] || authentication_userid(options[:auth_type])
  password = options[:password] || authentication_password(options[:auth_type])
  # Note: The hard-coded aws_region will be removed after manageiq-ui-class implements region selection
@@ -62,7 +63,8 @@ def connection_rescue_block
  end
 
  def translate_exception(err)
- require 'aws-sdk'
+ require 'aws-sdk-ec2'
+
  case err
  when Aws::EC2::Errors::SignatureDoesNotMatch
  MiqException::MiqHostError.new("SignatureMismatch - check your AWS Secret Access Key and signing method")