drm/i915: Rework drop caches for checkpatch
drm/i915: Rework drop caches for checkpatch

With an upcoming change to bind, to make checkpatch happy and keep the
code clean, we need to rework this code a bit.

This should have no functional impact.

Signed-off-by: Ben Widawsky <73675debcd8a436be48ec22211dcf44fe0df0a64@bwidawsk.net>
[danvet: Add the newline Chris requested.]
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs