KVM: arm64: Do not re-initialize the KVM lock

The lock is already initialized in core KVM code at
kvm_create_vm().

Fixes: 9d0c063a ("KVM: arm64: Instantiate pKVM hypervisor VM and vCPU structures from EL1")
Signed-off-by: Fuad Tabba <tabba@google.com>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240423150538.2103045-5-tabba@google.com


Signed-off-by: Marc Zyngier <maz@kernel.org>