GPU Standalone: fix prepare script using O2 env modules

Author: davidrohr

GPU/GPUTracking/Standalone/cmake/prepare.sh

@@ -10,7 +10,7 @@ else
   WORK_DIR="$ALIBUILD_WORK_DIR"
 fi
 eval "`alienv shell-helper`"
-alienv load O2/latest
-for i in Vc boost fmt CMake ms_gsl Clang ninja; do
+# alienv load O2/latest
+for i in Vc boost fmt CMake ms_gsl Clang ninja TBB ROOT; do
   source sw/$ALIARCH/$i/latest/etc/profile.d/init.sh
 done