Allow negative value for CorrelationVector#samplingStartM

Bug: 195934893
Test: on cuttlefish
Change-Id: Ief1514c8d8e48c9c3f13b93c3d2c355a508a84a7
(cherry picked from commit 37f63ed771ca2f4d02ac0625b0129c80549704fc)
2 files changed