v4l2_codec2: Update encoder name in e2e encoder tests to new V4L2 encoder.

This CL updates the encoder name used by the e2e encoder tests to the
name of the new C2 V4L2 encoder component that is currently under
development.

Bug: 143333813
Test: mmm external/v4l2_codec2/tests/c2_e2e_test
Change-Id: Id5c9118968726f90b04345db2b7263993d0e0f6b

tests/c2_e2e_test/jni/mediacodec_encoder.cpp

@@ -37,7 +37,7 @@ constexpr int kBufferPeriodTimeoutUs = 1000000;  // 1 sec
 std::vector<const char*> GetArcVideoEncoderNames(VideoCodecType type) {
     switch (type) {
     case VideoCodecType::H264:
-        return {"c2.vea.avc.encoder", "OMX.arc.h264.encode"};
+        return {"c2.v4l2.avc.encoder"};
     default:  // unsupported type: VP8, VP9, or unknown
         return {};
     }