drm/xe/xe_gt_idle: Add CCS to the powergating info print

drm/xe/xe_gt_idle: Add CCS to the powergating info print

[ Upstream commit 369ba0d1efe91cccabe98ae53c53b7425f327edf ]

While reading the main GT powergating info from debugfs, include both
RCS and CCS engine masks.

Fixes: 0914c1e45d3a1 ("drm/xe/xe_gt_idle: add debugfs entry for powergating info")
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Link: https://patch.msgid.link/20260819073457.1812722-2-balasubramani.vivekanandan@intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 8899e413c5ab85443ec9bbc50cffe924c6b596de)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>