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

When reviewing DDI translation table I noticed few changes we
haven't incorporated yet and it is always good to follow latest
spec.
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/1452009511-15064-1-git-send-email-rodrigo.vivi@intel.com

drivers/gpu/drm/i915/intel_ddi.c

@@ -145,7 +145,7 @@ static const struct ddi_buf_trans skl_ddi_translations_dp[] = {
 static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = {
 	{ 0x0000201B, 0x000000A2, 0x0 },
 	{ 0x00005012, 0x00000088, 0x0 },
-	{ 0x00007011, 0x00000087, 0x0 },
+	{ 0x80007011, 0x000000CD, 0x0 },
 	{ 0x80009010, 0x000000C0, 0x1 },	/* Uses I_boost level 0x1 */
 	{ 0x0000201B, 0x0000009D, 0x0 },
 	{ 0x80005012, 0x000000C0, 0x1 },	/* Uses I_boost level 0x1 */
@@ -158,7 +158,7 @@ static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = {
 static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = {
 	{ 0x00000018, 0x000000A2, 0x0 },
 	{ 0x00005012, 0x00000088, 0x0 },
-	{ 0x00007011, 0x00000087, 0x0 },
+	{ 0x80007011, 0x000000CD, 0x0 },
 	{ 0x80009010, 0x000000C0, 0x3 },	/* Uses I_boost level 0x3 */
 	{ 0x00000018, 0x0000009D, 0x0 },
 	{ 0x80005012, 0x000000C0, 0x3 },	/* Uses I_boost level 0x3 */