Cts Verifier: clarify item # projection scrolling list test

The list previously was from #0 to #49, whereas the test
asked the operator if 50 entries can be seen. This caused
some confusion to first time users - hence making a small
change to start the list number from #1

Bug: 18285916
Change-Id: I55462682f0d23b17d4a9daa1a14ebafb6abd48ee