BIGTOP-4101. Fix undefined variable in toolchain manifest for openEuler.

[iwasakims]

https://issues.apache.org/jira/browse/BIGTOP-4101

BIGTOP-4097 broke the manifest in openEuler due to missing pkgs variable.

[iwasakims]

@sekikn Could you review this? I need to fix this to move Bigtop 3.3.0 release forward.

[kevinw66]

Before:

[root@localhost bigtop]# ./gradlew -POS=openeuler-22.03 -Pprefix=3.3.0 bigtop-slaves
......

#7 [3/5] RUN if [ -f ~/.bash_profile ]; then . ~/.bash_profile; fi &&     yum clean all && yum updateinfo &&     puppet apply -e "include bigtop_toolchain::installer" --modulepath=/etc/puppet/modules/ || if [ $? -ne 2 ]; then exit 1; fi
#7 0.876 50 files removed
#7 85.89 OS                                               41 kB/s | 3.4 MB     01:24    
#7 435.4 everything                                       49 kB/s |  17 MB     05:48    
#7 440.4 EPOL                                            2.5 MB/s | 4.7 MB     00:01    
#7 545.0 debuginfo                                        40 kB/s | 4.0 MB     01:43    
#7 593.0 source                                           39 kB/s | 1.8 MB     00:47    
#7 601.9 update                                          1.8 MB/s |  15 MB     00:08    
#7 617.2 update-source                                    34 kB/s | 420 kB     00:12    
#7 618.6 Updates Information Summary: available
#7 618.6     15 Security notice(s)
#7 618.6          6 Important Security notice(s)
#7 618.6          7 Moderate Security notice(s)
#7 618.6          2 Low Security notice(s)
#7 643.1 Warning: Unknown variable: 'pkgs'. (file: /etc/puppet/modules/bigtop_toolchain/manifests/renv.pp, line: 54, column: 13)
#7 643.1 Error: Evaluation Error: Missing title. The title expression resulted in undef (file: /etc/puppet/modules/bigtop_toolchain/manifests/renv.pp, line: 54, column: 13) on node buildkitsandbox

After:

[root@localhost bigtop]# ./gradlew -POS=openeuler-22.03 -Pprefix=3.3.0 bigtop-slaves
......
#10 exporting to image
#10 exporting layers
#10 exporting layers 18.0s done
#10 writing image sha256:327660eb69db4e8aa90a9fe4138d1857da82b6f08271c52479558fc17495fe81 done
#10 naming to docker.io/bigtop/slaves:3.3.0-openeuler-22.03 done
#10 DONE 18.0s
+ rm -f Dockerfile

BUILD SUCCESSFUL in 2m 56s
1 actionable task: 1 executed

[kevinw66]

+1 LGTM, thanks @iwasakims

[iwasakims]

Thanks, @kevinw66.