Update arguments of BluetoothStatsLog.write for scan and adv metrics with empty value

CP ag/32134874 to AOSP

The new argument is needed due to the new field being added to the scan and adv atoms.
The empty value will be replaced with acutal value in a separate change.

Bug: 389731079
Flag: EXEMPT, metrics update
Test: atest ScanManagerTest AppAdvertiseStatsTest
Merged-In: I8012579276522dd42f409ec4c8a2a0f48190772b
Change-Id: I8012579276522dd42f409ec4c8a2a0f48190772b