CLOUDSTACK-8062: test_multiple_ip_ranges.py - Fix the test case to avoid using same vlan IP range in each test case

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK:8018: Fix test_redundant_router.test_redundantVR_internals - The SSH to router was being done from wrong host

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK:8058: Fix test_reset_ssh_keypair.py for EIP setup

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>