Allow use_name_prefix override in submodules

[antonbabenko]

This addition allows upgrade of this module without recreation of existing security groups.

Example:

module "http_mysql_1_sg" {
  source = "terraform-aws-modules/security-group/aws//modules/http-80"

  name            = "my-web-1"
  use_name_prefix = false
  # ...
}

Ref: #92 (comment)

[antonbabenko]

Thanks @puzzloholic for the idea!

v2.10.0 has been released.

[github-actions]

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