media/codec2: skip secure encoders in VtsHalMediaC2V1_0TargetVideoEncTest

This fixes for PerInstance/Codec2VideoEncHidlTest#FlushTest/default_c2_qti_avc_encoder_secure_1

Testcase does not support secure input/output buffer for secure encoder and decoder.

Bug: 172067006
Change-Id: Ieac5be055c953a2350a396b1ac239f78516fefbf
1 file changed