Separate hdcp levels into a base interface

Both media drm and HWC can share this common base code.
Run the following commands to freeze the aidl:
(1) m android.hardware.drm.common-update-api && m android.hardware.drm.common-freeze-api
(2) system/tools/aidl/build/hash_gen.sh hardware/interfaces/drm/aidl/aidl_api/android.hardware.drm/1 latest-version hardware/interfaces/drm/aidl/aidl_api/android.hardware.drm/1/.hash

Bug: 293945485
Test: manual

Change-Id: I9e90ada03144b49245dc6b55a0fb2fa2eb6f3893
diff --git a/drm/common/aidl/Android.bp b/drm/common/aidl/Android.bp
new file mode 100644
index 0000000..1e4b8e0
--- /dev/null
+++ b/drm/common/aidl/Android.bp
@@ -0,0 +1,35 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+aidl_interface {
+    name: "android.hardware.drm.common",
+    vendor_available: true,
+    srcs: ["android/hardware/drm/*.aidl"],
+    stability: "vintf",
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            sdk_version: "module_current",
+        },
+        ndk: {
+            min_sdk_version: "34",
+        },
+    },
+    double_loadable: true,
+    versions_with_info: [
+        {
+            version: "1",
+            imports: [],
+        },
+    ],
+    frozen: true,
+
+}