Update name of YUV format enum

https://android-review.googlesource.com/#/c/181380/ removes RSYuvFormat
from the RS C++ API header and
https://android-review.googlesource.com/#/c/175567/ adds the same enum
in a slightly different name (RsYuvFormat).  Update CTS to use the
correct name.

Change-Id: I7940acdc4bf234cec2d4d0bbab970d364aa4c4c7
diff --git a/tests/tests/rscpp/librscpptest/rs_jni.cpp b/tests/tests/rscpp/librscpptest/rs_jni.cpp
index 47fa6c5..920d95d 100644
--- a/tests/tests/rscpp/librscpptest/rs_jni.cpp
+++ b/tests/tests/rscpp/librscpptest/rs_jni.cpp
@@ -459,7 +459,7 @@
     sp<RS> mRS = new RS();
     mRS->init(path);
 
-    RSYuvFormat mYuvFormat = (RSYuvFormat)yuvFormat;
+    RsYuvFormat mYuvFormat = (RsYuvFormat)yuvFormat;
     sp<ScriptIntrinsicYuvToRGB> syuv = ScriptIntrinsicYuvToRGB::create(mRS, Element::U8_4(mRS));;
     sp<Allocation> inputAlloc = nullptr;