Add boolean to differentiate icons from workprofile

Bug:145825382
Test:Manual
Change-Id: I95e0cfe48b4a397eb54455374f11c7ea14c028f6
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index 055ade5..8f413dc 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -57,6 +57,7 @@
   optional TargetExtension extension = 16;
   optional TipType tip_type = 17;
   optional int32 search_query_length = 18;
+  optional bool is_work_app = 19;
 }
 
 // Used to define what type of item a Target would represent.