[4.9] CLOUDSTACK-9692: Fix password server issue in redundant VRsThe password server in RVRs has wrong parameters as the gateway of guest nics is None.
In this case, we should get the gateway from /var/cache/cloud/cmdline.
This issue is caused by commit 45642b8382
* pr/1871:
CLOUDSTACK-9692: Fix password server issue in redundant VRs
Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>