FIX: 'hf 14a reader' - when card SAK was 0x00, it calls GetHF14AMfU_Type() to try...

when return_value == UL_ERROR,  it shall not print the mfu tagtype annotation.

---faulty behavior
proxmark3> hf 14a reader
 UID : 65 93 7f d1
ATQA : 00 04
 SAK : 00 [2]
Tag is not Ultralight | NTAG | MY-D  [ATQA: 00 04 SAK: 00]

TYPE : MIFARE Ultralight (MF0ICU1) <magic>
proprietary non iso14443-4 card found, RATS not supported
Answers to chinese magic backdoor commands: NO