drm/i915: Rename skl_vco_freq to cdclk_pll.vco

We'll want to store the cdclk PLL (whatever PLL that is in reality) vco
frequency somewhere on other platforms too, so let's rename the
skl_vco_freq to cdclk_pll.vco, and let's store it in kHz instead of MHz
to match most of the other clocks.

v2: Drop the spurious > vs != change (Imre)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463172100-24715-14-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 8b67e0f..aa9c59e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1589,10 +1589,10 @@
 		switch (pipe_config->port_clock / 2) {
 		case 108000:
 		case 216000:
-			vco = 8640;
+			vco = 8640000;
 			break;
 		default:
-			vco = 8100;
+			vco = 8100000;
 			break;
 		}