Fix the default value for long press on home.

In AOSP the values for this option are different than in CM.
Switch it back to the CM value for opening recent apps.

Change-Id: I0ded218659f6075aad6f178f3cd614fa10d40488
(cherry picked from commit c2f05dfb13db2a4eedaa2ffc29d2f1d4e8c6f5fa)