drm/i915: Update Skylake DDI translation table for HDMI.

When debuging an intermittent corrupted screen I suspected on DDI
translation table and checked we are out of date with the spec.

I'm not sure this will fix my bug yet, but it is always good to follow
the spec.

v2: Ville caught a switched i-boost value. Thanks!

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452021087-21673-1-git-send-email-rodrigo.vivi@intel.com

drivers/gpu/drm/i915/intel_ddi.c

@@ -226,26 +226,26 @@ static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = {
 	{ 0x00000018, 0x000000A1, 0x0 },
 	{ 0x00000018, 0x00000098, 0x0 },
 	{ 0x00004013, 0x00000088, 0x0 },
-	{ 0x00006012, 0x00000087, 0x0 },
+	{ 0x80006012, 0x000000CD, 0x1 },
 	{ 0x00000018, 0x000000DF, 0x0 },
-	{ 0x00003015, 0x00000087, 0x0 },	/* Default */
-	{ 0x00003015, 0x000000C7, 0x0 },
-	{ 0x00000018, 0x000000C7, 0x0 },
+	{ 0x80003015, 0x000000CD, 0x1 },	/* Default */
+	{ 0x80003015, 0x000000C0, 0x1 },
+	{ 0x80000018, 0x000000C0, 0x1 },
 };
 
 /* Skylake Y */
 static const struct ddi_buf_trans skl_y_ddi_translations_hdmi[] = {
 	{ 0x00000018, 0x000000A1, 0x0 },
 	{ 0x00005012, 0x000000DF, 0x0 },
-	{ 0x00007011, 0x00000084, 0x0 },
+	{ 0x80007011, 0x000000CB, 0x3 },
 	{ 0x00000018, 0x000000A4, 0x0 },
 	{ 0x00000018, 0x0000009D, 0x0 },
 	{ 0x00004013, 0x00000080, 0x0 },
-	{ 0x00006013, 0x000000C7, 0x0 },
+	{ 0x80006013, 0x000000C0, 0x3 },
 	{ 0x00000018, 0x0000008A, 0x0 },
-	{ 0x00003015, 0x000000C7, 0x0 },	/* Default */
-	{ 0x80003015, 0x000000C7, 0x7 },	/* Uses I_boost level 0x7 */
-	{ 0x00000018, 0x000000C7, 0x0 },
+	{ 0x80003015, 0x000000C0, 0x3 },	/* Default */
+	{ 0x80003015, 0x000000C0, 0x3 },
+	{ 0x80000018, 0x000000C0, 0x3 },
 };
 
 struct bxt_ddi_buf_trans {