drm_hwcomposer: Implement getDisplayPhysicalOrientation()

Implement ComposerClient::getDisplayPhysicalOrientation() by querying
the DRM display panel orientation property and translating the result to
the correct common::Transform enum value.

The result is used by SurfaceFlinger to correctly rotate the image
before displaying it to the user.

Signed-off-by: Tim Van Patten <timvp@google.com>
diff --git a/compositor/DisplayInfo.h b/compositor/DisplayInfo.h
new file mode 100644
index 0000000..bbcbff8
--- /dev/null
+++ b/compositor/DisplayInfo.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <cstdint>
+
+enum class Colorspace : int32_t {
+  kDefault,
+  kSmpte170MYcc,
+  kBt709Ycc,
+  kXvycc601,
+  kXvycc709,
+  kSycc601,
+  kOpycc601,
+  kOprgb,
+  kBt2020Cycc,
+  kBt2020Rgb,
+  kBt2020Ycc,
+  kDciP3RgbD65,
+  kDciP3RgbTheater,
+  kRgbWideFixed,
+  kRgbWideFloat,
+  kBt601Ycc,
+};
+
+/**
+ * Display panel orientation property values.
+ */
+enum PanelOrientation {
+  kModePanelOrientationNormal = 0,
+  kModePanelOrientationBottomUp,
+  kModePanelOrientationLeftUp,
+  kModePanelOrientationRightUp
+};