inputflinger_blocking_queue_fuzzer: Bug Fix

Resolved signed integer overflow. A range for duration has been set to prevent integer overflow.

exec/s: 4500
Test: ./inputflinger_blocking_queue_fuzzer clusterfuzz-testcase-minimized-inputflinger_blocking_queue_fuzzer-6214201068552192

Bug: 289472805
Change-Id: I012ced70927af97b4ebc9a314445f340d3b135f5