Reduce the hotness on lookups.

The Contacts app regressed in app startup and CpuCycles with a value of
0xff, so reduce it down to 0xf.

https://blackbox.googleplex.com/dashboard/art-perf/target/git_master/blueline-userdebug/6/AppLaunch%2523Contactsfirst-boot-dropcache-cyclic-compile-lock/15?pagination=true

Test: test.py
Test: google/perf/app-transition/app-transition-to-recents
Test: Contacts doesn't regress in CpuCycles and app startup for "verify"
      and "quicken"
Bug: 112676029
Bug: 157402634

Change-Id: Ieb6f3307d87a896968a2aea76ce0f75ff5b66686
1 file changed