drm/display: Add missing aux less alpm wake related bits

eDP1.5 adds some more bits into DP_RECEIVER_ALPM_CAP and
DP_RECEIVER_ALPM_CONFIG registers. Add definitions for these.
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-4-animesh.manna@intel.com

include/drm/display/drm_dp.h

@@ -232,6 +232,8 @@
 
 #define DP_RECEIVER_ALPM_CAP		    0x02e   /* eDP 1.4 */
 # define DP_ALPM_CAP			    (1 << 0)
+# define DP_ALPM_PM_STATE_2A_SUPPORT	    (1 << 1) /* eDP 1.5 */
+# define DP_ALPM_AUX_LESS_CAP		    (1 << 2) /* eDP 1.5 */
 
 #define DP_SINK_DEVICE_AUX_FRAME_SYNC_CAP   0x02f   /* eDP 1.4 */
 # define DP_AUX_FRAME_SYNC_CAP		    (1 << 0)
@@ -684,7 +686,8 @@
 
 #define DP_RECEIVER_ALPM_CONFIG		    0x116   /* eDP 1.4 */
 # define DP_ALPM_ENABLE			    (1 << 0)
-# define DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE  (1 << 1)
+# define DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE  (1 << 1) /* eDP 1.5 */
+# define DP_ALPM_MODE_AUX_LESS		    (1 << 2) /* eDP 1.5 */
 
 #define DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF  0x117   /* eDP 1.4 */
 # define DP_AUX_FRAME_SYNC_ENABLE	    (1 << 0)