Add android.hardware.drm@1.4

Bug: 136119370
Test: GtsMediaTestCases MediaDrmTest#testRequiresSecureDecoder
Change-Id: If7bec99c7a1c98da9f85876722e6da88a425b1e7
diff --git a/drm/1.4/ICryptoPlugin.hal b/drm/1.4/ICryptoPlugin.hal
new file mode 100644
index 0000000..874ef4c
--- /dev/null
+++ b/drm/1.4/ICryptoPlugin.hal
@@ -0,0 +1,26 @@
+/**
+ * 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.
+ */
+package android.hardware.drm@1.4;
+
+import @1.2::ICryptoPlugin;
+
+/**
+ * ICryptoPlugin is the HAL for vendor-provided crypto plugins.
+ * It allows crypto sessions to be opened and operated on, to
+ * load crypto keys for a codec to decrypt protected video content.
+ */
+interface ICryptoPlugin extends @1.2::ICryptoPlugin {
+};