Fix error on ZVMVirtualMachineNotExist usage
Fix error on ZVMVirtualMachineNotExist usage

ZVMVirtualMachineNotExist need 2 param, not 'msg'

Change-Id: I29067a68bbd76a1586323a5629ef660d7328442b

mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk