Return bad error message for Live resize memory request

[Ya Lian Pan]

When the live resize memory failed, I got the error message below:

{"overallRC":300,"output":"","rs":7,"rc":300,"errmsg":"Failed to live resize cpus of guest: 'VRO00001', error: define new cpu to active failed with smut error: 'Failed to execute command on vm via iucv channel. SMUT error: SMUT request failed. RequestData: 'cmdVM VRO00001 CMD 'chmem -e 4192M'', Results: '{'rs': 255, 'errno': 0, 'strError': '', 'overallRC': 2, 'rc': 8, 'response': [u'(Error) ULTVMU0316E On VRO00001, command sent through IUCV failed. cmd: chmem -e 4192M, rc: 8, rs: 255, out: ERROR: chmem: Size must be aligned to memory block size (256 MB).', u'', u'Return code 8, Reason code 255.']}''.","modID":10}

It says something about live resize cpus which is not the request