Fix min delay for virtual geomag vector sensor

bug: 31808374

N-CTS requires this to be <= 10 ms

Change-Id: I0959fa2cb9ae40bc832726fedccc77366aba1520
(cherry picked from commit f1a9141f72fc73af0485d12f5e4b5b176dbe9f34)
diff --git a/services/sensorservice/SensorFusion.cpp b/services/sensorservice/SensorFusion.cpp
index 9863f62..414f673 100644
--- a/services/sensorservice/SensorFusion.cpp
+++ b/services/sensorservice/SensorFusion.cpp
@@ -163,7 +163,7 @@
     }
     mSensorDevice.batch(ident, mAcc.getHandle(), 0, ns, 0);
     if (mode != FUSION_NOMAG) {
-        mSensorDevice.batch(ident, mMag.getHandle(), 0, ms2ns(20), 0);
+        mSensorDevice.batch(ident, mMag.getHandle(), 0, ms2ns(10), 0);
     }
     if (mode != FUSION_NOGYRO) {
         mSensorDevice.batch(ident, mGyro.getHandle(), 0, mTargetDelayNs, 0);