Add decrypt hash support

[ Merge of http://go/wvgerrit/68083 ]

Add ability to query decrypt hash support, set a hash computed over a frame
and retrieve the last error at a later point.

Bug: 34080802
Test: WV unit/integration tests. New tests added to cdm_engine_test,
      libwvdrmdrmplugin_hidl_test and request_license_test.

Change-Id: I7548c8798c873a6af3e1cfc0df57c117e1e474a6

libwvdrmengine/cdm/core/test/test_printers.cpp

@@ -775,6 +775,18 @@ void PrintTo(const enum CdmResponseType& value, ::std::ostream* os) {
     case DEVICE_CANNOT_REPROVISION:
       *os << "DEVICE_CANNOT_REPROVISION";
       break;
+    case SET_DECRYPT_HASH_ERROR:
+      *os << "SET_DECRYPT_HASH_ERROR";
+      break;
+    case GET_DECRYPT_HASH_ERROR:
+      *os << "GET_DECRYPT_HASH_ERROR";
+      break;
+    case SESSION_NOT_FOUND_20:
+      *os << "SESSION_NOT_FOUND_20";
+      break;
+    case INVALID_DECRYPT_HASH_FORMAT:
+      *os << "INVALID_DECRYPT_HASH_FORMAT";
+      break;
     default:
       *os << "Unknown CdmResponseType";
       break;