Integrate Legacy DRM metrics with statsd

Bug: 134789967
Test: statsd test_drive
Change-Id: I113c74ef63b52ab12063523d133ade15956ce03e
diff --git a/services/mediaanalytics/iface_statsd.cpp b/services/mediaanalytics/iface_statsd.cpp
index 6845f06..6fd4415 100644
--- a/services/mediaanalytics/iface_statsd.cpp
+++ b/services/mediaanalytics/iface_statsd.cpp
@@ -60,6 +60,7 @@
     { "audiotrack", statsd_audiotrack },
     { "codec", statsd_codec},
     { "drm.vendor.Google.WidevineCDM", statsd_widevineCDM },
+    { "drmmanager", statsd_drmmanager },
     { "extractor", statsd_extractor },
     { "mediadrm", statsd_mediadrm },
     { "nuplayer", statsd_nuplayer },