Increase min delay of default gyro sensor

The gyro sensor is simulated by CPU. The min delay was too short in
comparison with CPU time slice, which might result in CTS failure.
This commit increases the min delay so as to decrease the relative error
of time intervals.

Test: atest CtsSensorTestCases:android.hardware.cts.SingleSensorTests#testGyroscope_fastest
Bug: 177871363
Change-Id: I58bc08d30633250cacc5f7dddc6cd836c796475b