Remove use of construct lib FieldError exception

Version 2.8.22 of the construct lib has introduced a change that
removed the core.FieldError exception. The check now uses the
parent exception - core.ConstructError.

Change-Id: I31922c2afc2018a4f6f7ba48094388070537a13f
Closes-Bug: 1745208

ironic_inspector/common/lldp_parsers.py

@@ -155,8 +155,7 @@ class LLDPParser(object):
         # individual fields can be accessed
         try:
             struct = tlv_parser.parse(data)
-        except (core.RangeError, core.FieldError, core.MappingError,
-                netaddr.AddrFormatError) as e:
+        except (core.ConstructError, netaddr.AddrFormatError) as e:
             LOG.warning("TLV parse error: %s", e,
                         node_info=self.node_info)
             return False