Increase number of supported datatypes

Increase number of datatypes so that shared backup agents that support
multiple components can define enough datatypes

Test: atest SystemBackupAgentTest, atest BackupRestoreEventLoggerTest
Bug: 296844513
Change-Id: I3f810ccfe2ca68253aa43b1dd3a0a0316dee4e63
diff --git a/services/backup/flags.aconfig b/services/backup/flags.aconfig
index 6a63b3a..71f2b9e 100644
--- a/services/backup/flags.aconfig
+++ b/services/backup/flags.aconfig
@@ -32,4 +32,13 @@
     description: "Enables clearing the pipe buffer after restoring a single file to a BackupAgent."
     bug: "320633449"
     is_fixed_read_only: true
+}
+
+flag {
+    name: "enable_increase_datatypes_for_agent_logging"
+    namespace: "onboarding"
+    description: "Increase the number of a supported datatypes that an agent can define for its "
+            "logger."
+    bug: "296844513"
+    is_fixed_read_only: true
 }
\ No newline at end of file