Relax measurement tests to allow 3 empty GnssData

Bug: 361708912
Test: atest VtsHalGnssTargetTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:8c495af39e67eaa5646677789881c5c3c00a1ee0)
Merged-In: I9322e1e686067ed5c46740677db1245243070d30
Change-Id: I9322e1e686067ed5c46740677db1245243070d30
2 files changed