liboemcrypto only exists in vendor/ builds

Change-Id: Ied82b1f8dc177feb710e8d9b0abd42fbfac4d9f9
diff --git a/libdrmdecrypt/Android.mk b/libdrmdecrypt/Android.mk
index 2f1b644..d6fc4a6 100644
--- a/libdrmdecrypt/Android.mk
+++ b/libdrmdecrypt/Android.mk
@@ -9,8 +9,7 @@
         $(TOP)/frameworks/native/include/media/hardware \
         $(TOP)/vendor/widevine/proprietary/cryptoPlugin \
 
-LOCAL_STATIC_LIBRARIES := \
-        liboemcrypto                    \
+LOCAL_STATIC_LIBRARIES += \
         libtee_client_api_driver        \
 
 LOCAL_SHARED_LIBRARIES := \