lpar: Fix completion statuses for STOP operation
lpar: Fix completion statuses for STOP operation

The status of a stopped LPAR should be 'not-operating'.

Signed-off-by: Alexander Egorenkov <070ce257c3a2cbcf81c5622c51f60f2b88d8dc2e@linux.ibm.com>

zhmcclient/python-zhmcclient,zhmcclient/python-zhmcclient