Camera: Fix VTS failure for depth only camera

If the device is depth-only, use threshold with Y16 format rather than
IMPLEMENTATION_DEFINED.

This fixes the regression introduced by the fix for b/265984260.

Bug: 276957901
Test: atest VtsAidlHalCameraProvider_TargetTest
Change-Id: If9023f1ed17bb761abbb9be36e567264f8bf0689
diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index 5ea6ae2..317f02e 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -6346,7 +6346,7 @@
         AvailableStream depthPreviewThreshold = {kMaxPreviewWidth, kMaxPreviewHeight,
                                                  static_cast<int32_t>(PixelFormat::Y16)};
         const AvailableStream* depthThreshold =
-                (threshold != nullptr) ? threshold : &depthPreviewThreshold;
+                isDepthOnly(staticMeta) ? &depthPreviewThreshold : threshold;
         fillOutputStreams(&depthEntry, outputStreams, depthThreshold,
                           ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT);
     }
diff --git a/camera/provider/aidl/vts/camera_aidl_test.cpp b/camera/provider/aidl/vts/camera_aidl_test.cpp
index 573b8f1..dc106a1 100644
--- a/camera/provider/aidl/vts/camera_aidl_test.cpp
+++ b/camera/provider/aidl/vts/camera_aidl_test.cpp
@@ -779,7 +779,7 @@
         AvailableStream depthPreviewThreshold = {kMaxPreviewWidth, kMaxPreviewHeight,
                                                  static_cast<int32_t>(PixelFormat::Y16)};
         const AvailableStream* depthThreshold =
-                (threshold != nullptr) ? threshold : &depthPreviewThreshold;
+                isDepthOnly(staticMeta) ? &depthPreviewThreshold : threshold;
         fillOutputStreams(&depthEntry, outputStreams, depthThreshold,
                           ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT);
     }