drm/i915/xelpg: Extend driver code of Xe_LPG to Xe_LPG+

drm/i915/xelpg: Extend driver code of Xe_LPG to Xe_LPG+

[ Upstream commit 84bf82f4f8661930a134a1d86bde16f7d8bcd699 ]

Xe_LPG+ (IP version 12.74) should take the same general code
paths as Xe_LPG (versions 12.70 and 12.71).

Xe_LPG+'s workaround list will be handled by the next patch.

Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Haridhar Kalvala <haridhar.kalvala@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240108122738.14399-3-haridhar.kalvala@intel.com
Stable-dep-of: 9d3d9776bd3b ("drm/i915: Disable RPG during live selftest")
Signed-off-by: Sasha Levin <sashal@kernel.org>