Address CDM compilation warnings for android

[ Merge of http://go/wvgerrit/169230 ]

Bug: 275675184
Test: Compile and GtsMediaTestCases
Change-Id: I3dc01f383a1fae07c126782e8d3561ab724316a8

libwvdrmengine/factory_upload_tool/src/log.cpp

@@ -63,6 +63,8 @@ void Log(const char* file, const char* function, int line, LogPriority level,
   android_LogPriority prio = ANDROID_LOG_VERBOSE;
 
   switch (level) {
+    case CDM_LOG_SILENT:
+      return;
     case CDM_LOG_ERROR:
       prio = ANDROID_LOG_ERROR;
       break;