[rtemodel] Fix license agreement path

Author: brondani

libs/rtemodel/src/RteProject.cpp

@@ -145,7 +145,7 @@ RteLicenseInfo* RteLicenseInfoCollection::EnsureLicenseInfo(RteItem* item, RteIt
       licFile = pack->GetChildText("license");
     }
       if (!licFile.empty()) {
-        info->AddAttribute("agreement", "${CMSIS_PACK_ROOT}/" + pack->GetPackagePath(true) + licFile);
+        info->AddAttribute("agreement", pack->GetAbsolutePackagePath() + licFile);
     }
   } else {
     info = it->second;

libs/rtemodel/test/src/RteModelTest.cpp

@@ -386,6 +386,12 @@ TEST_F(RteModelPrjTest, LoadCprj) {
   loadedCprjProject->CollectLicenseInfos(licences);
   string licenseText = licences.ToString();
 
+  string packRoot = rteKernel.GetCmsisPackRoot();
+  size_t index;
+  while ((index = licenseText.find(packRoot)) != std::string::npos) {
+    licenseText.replace(index, packRoot.length(), "${CMSIS_PACK_ROOT}");
+  }
+
   string licRefFile = prjsDir + RteTestM3 + "/license_info_ref.txt";
   EXPECT_TRUE(RteFsUtils::CmpFileMem(licRefFile, licenseText));