Some restructuring of the build was required to support the different

OEM security levels used on tuna vs stingray & crespo. This is part of
the work for b/4598045 Implementing secure video path on TI OMAP4 chip
for ICS.

The Widevine libraries included here, 4.5.0.4321 also contain a fix
for b/4400696 Pinning and unpinning multiple movie for download behavior
is not uniform for multiple tries.

Change-Id: I67f34c06a0353ac7f401f55c1ed4fc2493bc8ab7

proprietary/drmwvmplugin/lib/Android.mk

@@ -2,24 +2,13 @@ ifeq ($(TARGET_ARCH),arm)
 
 LOCAL_PATH:= $(call my-dir)
 
-include $(CLEAR_VARS)
+include $(TOP)/vendor/widevine/proprietary/drmwvmplugin/oemcryptolevel.mk
+
+LOCAL_PREBUILT_LIBS := \
+       libwvdrm_L$(LOCAL_OEMCRYPTO_LEVEL).so \
+       libwvocs_L$(LOCAL_OEMCRYPTO_LEVEL).a
 
-include $(CLEAR_VARS)
-LOCAL_MODULE := libwvocs
-LOCAL_SRC_FILES := \
-        libwvocs.a
 LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_SUFFIX := .a
-LOCAL_MODULE_CLASS := STATIC_LIBRARIES
-include $(BUILD_PREBUILT)
+include $(BUILD_MULTI_PREBUILT)
 
-include $(CLEAR_VARS)
-LOCAL_MODULE := liboemstub
-LOCAL_SRC_FILES := \
-        liboemstub.a
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_SUFFIX := .a
-LOCAL_MODULE_CLASS := STATIC_LIBRARIES
-include $(BUILD_PREBUILT)
-
-endif
+endif