Bug 575943 - Move P-build target to 4.21 GA

Change-Id: I736a21307850687b8003c73aefa138d42eef4424
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.releng.aggregator/+/185363
diff --git a/eclipse-platform-parent/pom.xml b/eclipse-platform-parent/pom.xml
index b971562..7ed4f16 100644
--- a/eclipse-platform-parent/pom.xml
+++ b/eclipse-platform-parent/pom.xml
@@ -599,12 +599,12 @@
         <versionRangeForPatch>[3.18.900.v20210906-0500,3.18.949.v20211028-1800)</versionRangeForPatch>
         <versionRangeForPatchPDE>[3.14.900.v20210906-0500,3.14.949.v20211028-1800)</versionRangeForPatchPDE>
         <!-- Comment this line when a patch is required on top of I-build -->
-        <comparator.repo>https://download.eclipse.org/eclipse/updates/4.21-I-builds/I20210906-0500/</comparator.repo>
+        <comparator.repo>https://download.eclipse.org/eclipse/updates/4.21/R-4.21-202109060500/</comparator.repo>
       </properties>
       <repositories>
        <repository>
          <id>eclipse-p2-repo-java17patch</id>
-         <url>https://download.eclipse.org/eclipse/updates/4.21-I-builds/I20210906-0500/</url>
+         <url>https://download.eclipse.org/eclipse/updates/4.21/R-4.21-202109060500/</url>
          <layout>p2</layout>
        </repository>
      </repositories>