Fix alignment for _create_cmis_api() (sonic-net#78)

Fix alignment for _create_cmis_api()

Author: prgeor

sonic_platform_base/sonic_xcvr/xcvr_api_factory.py

@@ -75,7 +75,7 @@ def _get_vendor_part_num(self):
        vendor_pn = part_num.decode()
        return vendor_pn.strip()
 
- def _create_cmis_api(self):
+    def _create_cmis_api(self):
         api = None
         vendor_name = self._get_vendor_name()
         vendor_pn = self._get_vendor_part_num()