drm/i915: Simplify aux_ch_to_digital_port()

Just return the correct thing from within the loop to make
the code more readable. We have no ref counts/etc. to deal
with here so no point in breaking from the loop just to return
something.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240223203216.15210-2-ville.syrjala@linux.intel.comReviewed-by: Imre Deak <imre.deak@intel.com>

drivers/gpu/drm/i915/display/intel_display_power_well.c

@@ -217,27 +217,22 @@ static struct intel_digital_port *
 aux_ch_to_digital_port(struct drm_i915_private *dev_priv,
 		       enum aux_ch aux_ch)
 {
-	struct intel_digital_port *dig_port = NULL;
 	struct intel_encoder *encoder;
 
 	for_each_intel_encoder(&dev_priv->drm, encoder) {
+		struct intel_digital_port *dig_port;
+
 		/* We'll check the MST primary port */
 		if (encoder->type == INTEL_OUTPUT_DP_MST)
 			continue;
 
 		dig_port = enc_to_dig_port(encoder);
-		if (!dig_port)
-			continue;
-
-		if (dig_port->aux_ch != aux_ch) {
-			dig_port = NULL;
-			continue;
-		}
 
-		break;
+		if (dig_port && dig_port->aux_ch == aux_ch)
+			return dig_port;
 	}
 
-	return dig_port;
+	return NULL;
 }
 
 static enum phy icl_aux_pw_to_phy(struct drm_i915_private *i915,