[Intel-gfx] drm/i915: always split up refactoring from functional changes!

[Jani Nikula]

Rodrigo's original patch was at v5 [1], and still stuck in discussion
around the *functional* change, while 99% of the patch is
*non-functional* refactoring that does not seem to be contentious.

Let's do the sane thing and merge the refactoring first, shall we?

BR,
Jani.


[1] http://patchwork.freedesktop.org/patch/msgid/20190718204912.24149-1-rodrigo.vivi@intel.com