CEC: Add VTS test to set language am: 3857aae7f1

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1577105

Change-Id: I8373f00a71fab09f43861d499a9de2c4af6d0ca3
diff --git a/tv/cec/1.0/vts/functional/VtsHalTvCecV1_0TargetTest.cpp b/tv/cec/1.0/vts/functional/VtsHalTvCecV1_0TargetTest.cpp
index 95f4d67..167f4c4 100644
--- a/tv/cec/1.0/vts/functional/VtsHalTvCecV1_0TargetTest.cpp
+++ b/tv/cec/1.0/vts/functional/VtsHalTvCecV1_0TargetTest.cpp
@@ -112,3 +112,8 @@
     ret = hdmiCec->setOption(OptionKey::SYSTEM_CEC_CONTROL, false);
     EXPECT_TRUE(ret.isOk());
 }
+
+TEST_P(HdmiCecTest, SetLanguage) {
+    Return<void> ret = hdmiCec->setLanguage("eng");
+    EXPECT_TRUE(ret.isOk());
+}