Correctly handle local display only for SRM version.

[ Merge of http://go/wvgerrit/105343 ]

If a device only supports local display (eliminating the need for an
SRM version), then the CDM should treat this as no SRM version.

Bug: 166009716
Test: License request integration test
Change-Id: I2d9c3f98735563df6d7c7a287abab41bf0a8c513

libwvdrmengine/include_hidl/mapErrors-inl.h

@@ -356,6 +356,7 @@ static Status mapCdmResponseType(wvcdm::CdmResponseType res) {
     case wvcdm::SHRINK_USAGE_TABLE_HEADER_ENTRY_IN_USE:
     case wvcdm::LICENSE_USAGE_ENTRY_MISSING:
     case wvcdm::PROVISIONING_NOT_ALLOWED_FOR_ATSC:
+    case wvcdm::NO_SRM_VERSION:
       ALOGW("Returns UNKNOWN error for legacy status: %d", res);
       return Status::ERROR_DRM_UNKNOWN;