Increase max # per-UID callbacks to 125.

The connectivity callback limit was increased for the system, so
increasing the maximum number of callbacks JS will register to avoid the
chance of network/callback starvation.

Bug: 173035526
Test: atest frameworks/base/services/tests/servicestests/src/com/android/server/job
Test: atest frameworks/base/services/tests/mockingservicestests/src/com/android/server/job
Test: atest CtsJobSchedulerTestCases
Change-Id: I43eb80e0633c043f639d432eec08745973c9da0f