License property for company_name should come from device on android

The company_name was hardcoded in the CDM as "Google" for all devices.
On Android, it needs to come from the ro.product.manufacturer system
property.

bug: 9074091

This is a merge of https://widevine-internal-review.googlesource.com/#/c/5730/
from the Widevine CDM repository.

Change-Id: Ia3ae82abf350c32ba8b4d05b59e95361927dea40

libwvdrmengine/cdm/src/properties.cpp

@@ -19,6 +19,10 @@ namespace {
 
 namespace wvcdm {
 
+bool Properties::GetCompanyName(std::string& company_name) {
+  return GetAndroidProperty("ro.product.manufacturer", company_name);
+}
+
 bool Properties::GetModelName(std::string& model_name) {
   return GetAndroidProperty("ro.product.model", model_name);
 }