drm/i915: Merge TARGET_POWER_ON and PANEL_POWER_ON flag definitions

These two flags mean the same thing, so remove the duplication.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470827254-21954-2-git-send-email-imre.deak@intel.com
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 413e729..c5739fc 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -220,7 +220,7 @@
 
 	I915_WRITE(lvds_encoder->reg, I915_READ(lvds_encoder->reg) | LVDS_PORT_EN);
 
-	I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) | POWER_TARGET_ON);
+	I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) | PANEL_POWER_ON);
 	POSTING_READ(lvds_encoder->reg);
 	if (intel_wait_for_register(dev_priv, PP_STATUS(0), PP_ON, PP_ON, 1000))
 		DRM_ERROR("timed out waiting for panel to power on\n");
@@ -234,7 +234,7 @@
 	struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
-	I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) & ~POWER_TARGET_ON);
+	I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) & ~PANEL_POWER_ON);
 	if (intel_wait_for_register(dev_priv, PP_STATUS(0), PP_ON, 0, 1000))
 		DRM_ERROR("timed out waiting for panel to power off\n");