gateware/common: Unify a bit with other repo

This just pulls in some small update in various files shared
by several repository. It's mostly comment and formatting, nothing
functionnal really.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: Icb7bea1cf7243e9ace819cd567eb006fcc71c808
4 files changed