CDD: Relax CDD for activity switching.

The number of displayed activities requirement has been relaxed from 20
to 6, as supporting less than 20 activities is not breaking apps, is better
for low memory devices, and finally this allows for more flexible UI choices.

Bug: 32839572
Change-Id: Ied279c85feb239c781c100cb60ebb59df95b6505
1 file changed