In case the package manager is not yet started, retry saving the profile up to 20 times to give it time. Should fix test flakiness. Also addresses previous review comment. Bug: 144048260 Bug: 139883463 Test: atest BootImageProfileTest (cherry-picked from commit 233c33956bab083650b7ef608e8ac9d446dba75a) Merged-In: I12e101447d2a42fb0fcad7ad3427750c3ce89a79 Change-Id: I12e101447d2a42fb0fcad7ad3427750c3ce89a79