Add WiFi Vendor HAL AIDL interface definitions.

Bug: 205044134
Test: mm -j
BYPASS_INCLUSIVE_LANGUAGE_REASON=HE refers to high-efficiency.

Change-Id: I757f36feca9f30ad5e04204b7b0fd4caee63cabc
diff --git a/wifi/aidl/android/hardware/wifi/StaLinkLayerIfaceContentionTimeStats.aidl b/wifi/aidl/android/hardware/wifi/StaLinkLayerIfaceContentionTimeStats.aidl
new file mode 100644
index 0000000..51f6916
--- /dev/null
+++ b/wifi/aidl/android/hardware/wifi/StaLinkLayerIfaceContentionTimeStats.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+package android.hardware.wifi;
+
+/**
+ * Contention time statistics for different traffic categories.
+ */
+@VintfStability
+parcelable StaLinkLayerIfaceContentionTimeStats {
+    /**
+     * Data packet min contention time (usec). This includes both the internal contention time
+     * among different access categories within the chipset and the contention time for the medium.
+     */
+    int contentionTimeMinInUsec;
+    /**
+     * Data packet max contention time (usec). This includes both the internal contention time
+     * among different access categories within the chipset and the contention time for the medium.
+     */
+    int contentionTimeMaxInUsec;
+    /**
+     * Data packet average contention time (usec). This includes both the internal contention time
+     * among different access categories within the chipset and the contention time for the medium.
+     */
+    int contentionTimeAvgInUsec;
+    /**
+     * Number of data packets used for contention statistics.
+     */
+    int contentionNumSamples;
+}