Metrics constants for provisioning entry points

Added metrics variable to log provisioning entry points. Happens
once, when the device is provisioned. It shouldn't be more than
10 times in device's life.

Test: NA

Bug: 31424428
Bug: 31425628
Change-Id: I3ada95d5cfac0adf2aaa6433bc2669b989d2ba41
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 517dbe3..cebde98 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -2578,6 +2578,21 @@
     // OPEN Settings > Bluetooth > Attempt to connect to device that shows dialog
     BLUETOOTH_DIALOG_FRAGMENT = 613;
 
+    // ACTION: Logs provisioning started by zero touch.
+    PROVISIONING_ENTRY_POINT_ZERO_TOUCH = 614;
+
+    // ACTION: Logs provisioning started by NFC bump.
+    PROVISIONING_ENTRY_POINT_NFC = 615;
+
+    // ACTION: Logs provisioning started using QR code.
+    PROVISIONING_ENTRY_POINT_QR_CODE = 616;
+
+    // ACTION: Logs provisioning started using adb.
+    PROVISIONING_ENTRY_POINT_ADB = 617;
+
+    // ACTION: Logs provisioning started by trusted source.
+    PROVISIONING_ENTRY_POINT_TRUSTED_SOURCE = 618;
+
     // ---- End O Constants, all O constants go above this line ----
 
     // Add new aosp constants above this line.