CDD: Sensors updates for timestamps and more

Change summary:
 - Timestamp synchronization is now mandatory with tightened guidance
 - Make +/- 16g accel guidance in hifi_sensors strongly recommended
 - Correct misleading wording in gyroscope and thermometer sections

Bug: 145023264
Test: view formatted markdown
Change-Id: If62e8a931d76f04f147c6dc5aeeb5ee1afb5968e
1 file changed