Correction to logging when SRM version is queried

[ Merge of http://go/wvgerrit/72703 ]

SRM is an optional feature and whether it is implemented is upto the
discretion of OEMs. If it is not, avoid logging this information.

Bug: 124391178
Test: WV unit/integration tests
Change-Id: If8d2b1e0b59fb11825f832a5d4259b03c482fd6b

libwvdrmengine/cdm/core/src/crypto_session.cpp

@@ -1856,6 +1856,14 @@ CdmResponseType CryptoSession::GetSrmVersion(uint16_t* srm_version) {
 
   OEMCryptoResult status = OEMCrypto_GetCurrentSRMVersion(srm_version);
 
+  // SRM is an optional feature. Whether it is implemented is up to the
+  // discretion of OEMs
+  if (status == OEMCrypto_ERROR_NOT_IMPLEMENTED) {
+    LOGV("CryptoSession::GetSrmVersion: OEMCrypto_GetCurrentSRMVersion not "
+         "implemented");
+    return NOT_IMPLEMENTED_ERROR;
+  }
+
   return MapOEMCryptoResult(
       status, GET_SRM_VERSION_ERROR, "GetCurrentSRMVersion");
 }