drm/i915/dmc_wl: Allow enable_dmc_wl=2 to mean "match any register"

drm/i915/dmc_wl: Allow enable_dmc_wl=2 to mean "match any register"

When debugging issues that might be related to the DMC wakelock code, it
is sometimes useful to compare runs when we match any register offset vs
the regular case. If issues disappear when we take the wakelock for any
register, it might indicate that we are missing some offset to be
tracked. Support matching any register offset with enable_dmc_wl=2.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241219221429.109668-4-gustavo.sousa@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>