drm/i915/tgl: Add note about Wa_1409142259

Different issues with the same fix, so justing adding
Wa_1409142259, Wa_1409252684, Wa_1409217633, Wa_1409207793,
Wa_1409178076 and 1408979724 to the comment so other devs can check if
this Was were implemetend with a simple grep.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200227220101.321671-8-jose.souza@intel.com

drivers/gpu/drm/i915/gt/intel_workarounds.c

@@ -580,7 +580,15 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine,
 static void tgl_ctx_workarounds_init(struct intel_engine_cs *engine,
 				     struct i915_wa_list *wal)
 {
-	/* Wa_1409142259:tgl */
+	/*
+	 * Wa_1409142259:tgl
+	 * Wa_1409347922:tgl
+	 * Wa_1409252684:tgl
+	 * Wa_1409217633:tgl
+	 * Wa_1409207793:tgl
+	 * Wa_1409178076:tgl
+	 * Wa_1408979724:tgl
+	 */
 	WA_SET_BIT_MASKED(GEN11_COMMON_SLICE_CHICKEN3,
 			  GEN12_DISABLE_CPS_AWARE_COLOR_PIPE);