Only show bluetooth icon when connected && enabled

Test: visual
Change-Id: Id1e6a483dec41d28f3679c37481a1538e8cadd57
Fixes: 71541936
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
index 20b5018..6444cc8 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
@@ -407,17 +407,17 @@
         int iconId = R.drawable.stat_sys_data_bluetooth;
         String contentDescription =
                 mContext.getString(R.string.accessibility_quick_settings_bluetooth_on);
-        boolean bluetoothEnabled = false;
+        boolean bluetoothVisible = false;
         if (mBluetooth != null) {
-            bluetoothEnabled = mBluetooth.isBluetoothEnabled();
             if (mBluetooth.isBluetoothConnected()) {
                 iconId = R.drawable.stat_sys_data_bluetooth_connected;
                 contentDescription = mContext.getString(R.string.accessibility_bluetooth_connected);
+                bluetoothVisible = mBluetooth.isBluetoothEnabled();
             }
         }
 
         mIconController.setIcon(mSlotBluetooth, iconId, contentDescription);
-        mIconController.setIconVisibility(mSlotBluetooth, bluetoothEnabled);
+        mIconController.setIconVisibility(mSlotBluetooth, bluetoothVisible);
     }
 
     private final void updateTTY() {