profcollect: Increase default dex2oat frequency

Given how infrequently dex2oat gets invoked, the current default of 10%
is too low. Bump the default frequency to 25%.

Test: presubmit
Bug: 319377405
Change-Id: I23fabb7fe75c660ac5a159167ca7b9b3107c4be5
1 file changed