Fix parsing of cpus in the guest configuration file.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>

tools/python/xen/xend/XendConfig.py

@@ -85,6 +85,7 @@ def scrub_password(data):
 XENAPI_CFG_TO_LEGACY_CFG = {
     'uuid': 'uuid',
     'vcpus_number': 'vcpus',
+    'cpus': 'cpus',
     'memory_static_min': 'memory',
     'memory_static_max': 'maxmem',
     'name_label': 'name',