Merge r537527 and r537550 from www/nginx:

1. Switch with the nginx-upload-module to fdintino, they support http/2: https://github.com/fdintino/nginx-upload-module/.

2. Update 3rd party module nginx-link-function to 3.2.2.

Bump PORTREVISION.

PR: 246746 [1]
246897 [2]