Add VINTF fragment modules into required libs of modules-info

Currently modules-info.json misses modules from vintf_fragment_modules
because it was not handled from Soong. This change adds
vintf_fragment_modules as part of required modules of modules-info.json
so it can be handled from any other logic handles build information with
the json file.

Bug: 322089980
Test: An artifact depends on the modules-info.json handles
vintf_fragments modules properly.

Change-Id: I09a61b2ed201099a9d3b05dbed061d0366bb9255