cameraservice_test: Add DistortionMapperTest to the host build.

DistortionMapperTest depends on SessionConfigurationUtils, but uses
parts of it that do not rely on a HAL or other device-side information
(components in the android::hardware namespace). This change splits up
SessionConfiguration utils into two files so that functions that do not
rely on a HAL are not bundled with those that do.

Bug: 207411352
Test: Ran test on gLinux.
Change-Id: Iaeeab4ee68044984425a9918a58aa6ce18fc8de4
diff --git a/services/camera/libcameraservice/utils/SessionConfigurationUtilsHost.h b/services/camera/libcameraservice/utils/SessionConfigurationUtilsHost.h
new file mode 100644
index 0000000..9da1b99
--- /dev/null
+++ b/services/camera/libcameraservice/utils/SessionConfigurationUtilsHost.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+#ifndef ANDROID_SERVERS_CAMERA_SESSION_CONFIGURATION_UTILS_HOST_H
+#define ANDROID_SERVERS_CAMERA_SESSION_CONFIGURATION_UTILS_HOST_H
+
+#include "camera/CameraMetadata.h"
+
+namespace android {
+namespace camera3 {
+namespace SessionConfigurationUtils {
+
+bool isUltraHighResolutionSensor(const CameraMetadata &deviceInfo);
+
+int32_t getAppropriateModeTag(int32_t defaultTag, bool maxResolution = false);
+
+} // SessionConfigurationUtils
+} // camera3
+} // android
+
+#endif
\ No newline at end of file