Implement new MediaDrm methods

Methods for querying HDCP, security levels and
number of sessions

bug:64001680
bug:33657579

Test: cts: MediaDrmMockTest, ClearKeySystemTest
gts: GtsMediaTestCases

Change-Id: I7c84df02ec33d305b6bd5ac7479922f87aa64863
diff --git a/services/mediadrm/Android.mk b/services/mediadrm/Android.mk
index 2daa829..e870965 100644
--- a/services/mediadrm/Android.mk
+++ b/services/mediadrm/Android.mk
@@ -28,7 +28,8 @@
     libhidlbase \
     libhidlmemory \
     libhidltransport \
-    android.hardware.drm@1.0
+    android.hardware.drm@1.0 \
+    android.hardware.drm@1.1
 
 LOCAL_CFLAGS += -Wall -Wextra -Werror