Enforce call log length limit on a per PhoneAccount basis.

Performing the auto delete based on the PhoneAccount of the new entry.
This ensures no one CS can cause the removal of entries by another.

Test: Manual
Bug: 38196259
Merged-In: I382cb62a1b2b7e482c49ece05f90fc982b797add
Change-Id: I382cb62a1b2b7e482c49ece05f90fc982b797add