Implement isCryptoSchemeSupported in the Widevine drm plugin

Support overloaded isCryptoSchemeSupported method that
accepts a security level parameter

bug:110701831
test: cts media test cases, widevine integration tests, gts media tests

Change-Id: Ia84e40ff8d4f13fc06478e338e3238061e283dac

libwvdrmengine/cdm/core/include/initialization_data.h

@@ -24,6 +24,7 @@ class InitializationData {
   bool is_cenc() const { return is_cenc_; }
   bool is_hls() const { return is_hls_; }
   bool is_webm() const { return is_webm_; }
+  bool is_audio() const { return is_audio_; }
 
   bool IsEmpty() const { return data_.empty(); }
 
@@ -84,6 +85,7 @@ class InitializationData {
   bool is_cenc_;
   bool is_hls_;
   bool is_webm_;
+  bool is_audio_;
 
   std::vector<uint8_t> hls_iv_;
   CdmHlsMethod hls_method_;