[VTS] Update SetDisplayBrightness test item am: 70d2ef6b34

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2883951

Change-Id: Ia57991b0f949307764afeb9fe9fa58c67740900e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/graphics/composer/aidl/vts/VtsHalGraphicsComposer3_TargetTest.cpp b/graphics/composer/aidl/vts/VtsHalGraphicsComposer3_TargetTest.cpp
index 18d36e4..323e358 100644
--- a/graphics/composer/aidl/vts/VtsHalGraphicsComposer3_TargetTest.cpp
+++ b/graphics/composer/aidl/vts/VtsHalGraphicsComposer3_TargetTest.cpp
@@ -1554,6 +1554,7 @@
 }
 
 TEST_P(GraphicsComposerAidlCommandTest, SetDisplayBrightness) {
+    EXPECT_TRUE(mComposerClient->setPowerMode(getPrimaryDisplayId(), PowerMode::ON).isOk());
     const auto& [status, capabilities] =
             mComposerClient->getDisplayCapabilities(getPrimaryDisplayId());
     ASSERT_TRUE(status.isOk());