p.haul: fix vzctl utility calls in vz module
p.haul: fix vzctl utility calls in vz module

Pass "--skiplock" option to vzctl calls.

For vz module p.haul execed during container migration via vzmigrate
utility and as a result container already locked. I think we can pass
"--skiplock" option to vzctl utility unconditionally since it is
primary scenario for vz module of p.haul.

Signed-off-by: Nikita Spiridonov <e2c2785991de10f66b050593578d4296c6c8705d@odin.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

aburluka/p.haul,aburluka/p.haul,arthurlockman/p.haul,jne100/p.haul,xemul/p.haul,arthurlockman/p.haul,arthurlockman/p.haul,jne100/p.haul,aburluka/p.haul,xemul/p.haul,xemul/p.haul,aburluka/p.haul,xemul/p.haul,arthurlockman/p.haul,arthurlockman/p.haul,jne100/p.haul,aburluka/p.haul,xemul/p.haul,jne100/p.haul,jne100/p.haul