Add metric for connected device advanced page.

Bug: 69333961
Test: Build
Change-Id: I0dffe5ec773abd66cb6b0bb4c3d3413820aa7103
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index f5d5d27..c6cf302 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -5017,6 +5017,11 @@
     // OS: P
     FUELGAUGE_POWER_USAGE_SUMMARY_V2 = 1263;
 
+    // OPEN: Settings > Connected devices > Connection preferences
+    // CATEGORY: SETTINGS
+    // OS: P
+    CONNECTION_DEVICE_ADVANCED = 1264;
+
     // ---- End P Constants, all P constants go above this line ----
 
     // Add new aosp constants above this line.