CDD: Clarify that the AOSP implementation of TEE is a preferred reference Section: 7.3.10. Fingerprint Sensor am: 3b471e1254 am: 63f333a4d5 am: 21deb48dab
am: 165b2cf4e6

Change-Id: I584443d3372579b7d03091891b59f9c3966e43a3