Add a major incremental build scenario to cuj metrics.

The mentioned scenario in b/152046247 would help to detect if there
is an incremental build issue.

Bug: b/145688720
Test: * m cuj_tests
      * Ran the cuj_tests and verified that the Intent.java file was
         touched. Unmarshalled the cuj_metrics.pb file and check if
	 the added scenario existed.
Change-Id: Ic6c335f005568dd77c99e4e1762383ec76d57ecb