Bug#887153: New version 3.0.5-rc2 available

[Yangfl]

Source: capstone
Version: 3.0.4-3

The current Debian version is outdated. Since I'm packing
https://github.com/avast-tl/capstone2llvmir which require 3.0.5-rc2,
it would be nice to update it to the current upstream one.

Thanks,