Updated systemvm template paths
Updated systemvm template paths

The referenced systemvm paths are old, and contain heartbleed. Updated with newer, but still 4.3, templates.

Signed-off-by: pdion891 <e9e882f3ec37548e0c05a9f7d4472a2bcb77fdba@apache.org>

pdion891/cloudstack-docs-install,unodba/cloudstack-docs-install,unodba/cloudstack-docs-install,pdion891/cloudstack-docs-install,pdion891/cloudstack-docs-install,apache/cloudstack-docs-install,unodba/cloudstack-docs-install,apache/cloudstack-docs-install,apache/cloudstack-docs-install