drm/i915/skl: Fix the CTRL typo in the DPLL_CRTL1 defines

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index abbca0e..8e21e23 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6467,10 +6467,10 @@
 		return 540000;
 
 	linkrate = (I915_READ(DPLL_CTRL1) &
-		    DPLL_CRTL1_LINK_RATE_MASK(SKL_DPLL0)) >> 1;
+		    DPLL_CTRL1_LINK_RATE_MASK(SKL_DPLL0)) >> 1;
 
-	if (linkrate == DPLL_CRTL1_LINK_RATE_2160 ||
-	    linkrate == DPLL_CRTL1_LINK_RATE_1080) {
+	if (linkrate == DPLL_CTRL1_LINK_RATE_2160 ||
+	    linkrate == DPLL_CTRL1_LINK_RATE_1080) {
 		/* vco 8640 */
 		switch (cdctl & CDCLK_FREQ_SEL_MASK) {
 		case CDCLK_FREQ_450_432: