drm/i915: Fix up the forcewake timer initialization

drm/i915: Fix up the forcewake timer initialization

This is a regression introduced in

commit 0294ae7b44bba7ab0d4cef9a8736287f38bdb4fd
Author: Chris Wilson <[email protected]>
Date:   Thu Mar 13 12:00:29 2014 +0000

    drm/i915: Consolidate forcewake resetting to a single function

The reordered setup sequence ended up calling del_timer_sync before
the timer was set up correctly, resulting in endless hilarity when
loading the driver.

Compared to Ben's patch (which moved around the setup_timer call to
sanitize_early) this moves the sanitize_early call around in the
driver load call. This way we avoid calling setup_timer again in the
resume code (where we also call sanitize_early).

Cc: Chris Wilson <[email protected]>
Cc: Mika Kuoppala <[email protected]>
Cc: Ben Widawsky <[email protected]>
Tested-by: Rodrigo Vivi <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76242
Signed-off-by: Daniel Vetter <[email protected]>