Handle negative delays and deadlines.

Some apps are scheduling jobs with negative delays and deadlines. This
is invalid input that can lead to incorrect behavior when used in
calculations. Set a floor for delays and deadlines so that negatives are
no longer propagated and throw a target SDK gated exception for the
invalid input.

Bug: 323349338
Test: atest CtsJobSchedulerTestCases:JobInfoTest
Change-Id: I524cf83d4f60e72a874c6272c30c348a04de00ba