Add linxu/gtk/riscv64 the SDK4Mvn.aggr

#2394

Author: merks

eclipse.platform.releng/publish-to-maven-central/SDK4Mvn.aggr

@@ -11,6 +11,7 @@
   <configurations operatingSystem="linux" windowSystem="gtk" architecture="aarch64"/>
   <configurations operatingSystem="linux" windowSystem="gtk" architecture="ppc64le"/>
   <configurations operatingSystem="linux" windowSystem="gtk" architecture="x86_64"/>
+  <configurations operatingSystem="linux" windowSystem="gtk" architecture="riscv64"/>
   <configurations operatingSystem="macosx" windowSystem="cocoa" architecture="x86_64"/>
   <configurations operatingSystem="macosx" windowSystem="cocoa" architecture="aarch64"/>
   <configurations architecture="x86_64"/>