Fix compilation under NGINX v1.9.11
Fix compilation under NGINX v1.9.11

After the latest changes on NGINX dynamic modules, the module can't link
properly to the main NGINX codebase, as it reports a missing symbol:
`ngx_http_aws_auth`.  Apparently, we need to specify the module's
symbol in the `ngx_module_name` directive.

anomalizer/ngx_aws_auth,anomalizer/ngx_aws_auth,passion4code/ngx_aws_auth,passion4code/ngx_aws_auth