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/aidl/Android.bp b/drm/aidl/Android.bp
index afcb603..99780dc 100644
--- a/drm/aidl/Android.bp
+++ b/drm/aidl/Android.bp
@@ -14,6 +14,7 @@
     stability: "vintf",
     imports: [
         "android.hardware.common-V2",
+        "android.hardware.drm.common-V1",
     ],
     backend: {
         cpp: {
@@ -30,7 +31,10 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.common-V2"],
+            imports: [
+                "android.hardware.common-V2",
+                "android.hardware.drm.common-V1",
+            ],
         },
     ],