Added metrics for production readiness.

[ Merge of http://go/wvgerrit/151749 ]

Extended CryptoSession for recording the result of
OEMCrypto_ProductionReady().

Only OEMCrypto_SUCCESS is considered "production ready".  With the
exception of OEMCrypto_ERROR_NOT_IMPLEMENTED, any other result is
vendor-specific and indicates not being production ready.

Bug: 231655151
Test: metrics_collections_unittest
Change-Id: Ia0e5603d7ee1290238cce63d0194ae1aced424c1

libwvdrmengine/cdm/metrics/src/metrics_collections.cpp

@@ -211,6 +211,8 @@ void CryptoMetrics::Serialize(
       oemcrypto_maximum_usage_table_header_size_.ToProto());
   crypto_metrics->set_allocated_oemcrypto_watermarking_support(
       oemcrypto_watermarking_support_.ToProto());
+  crypto_metrics->set_allocated_oemcrypto_production_readiness(
+      oemcrypto_production_readiness_.ToProto());
 }
 
 SessionMetrics::SessionMetrics() : session_id_(""), completed_(false) {}