drm/i915/guc: enable guc interrupts unconditionally in uc_resume

Probably lost while rebasing commit eacd8391 ("drm/i915/guc: Keep GuC
interrupts enabled when using GuC").

Not really needed since i915_gem_init_hw is called before uc_resume, but
it brings symmetry to uc_suspend.
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180328205851.16188-1-michel.thierry@intel.com

drivers/gpu/drm/i915/intel_uc.c

@@ -480,7 +480,6 @@ int intel_uc_resume(struct drm_i915_private *i915)
 	if (guc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
 		return 0;
 
-	if (i915_modparams.guc_log_level)
 	gen9_enable_guc_interrupts(i915);
 
 	err = intel_guc_resume(guc);