winscard: Add a stub for SCardListCardsA.

dlls/winscard/winscard.c

@@ -94,3 +94,10 @@ LONG WINAPI SCardEstablishContext(DWORD dwScope, LPCVOID pvReserved1,
     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
     return SCARD_F_INTERNAL_ERROR;
 }
+
+LONG WINAPI SCardListCardsA(SCARDCONTEXT hContext, LPCBYTE pbAtr, LPCGUID rgguidInterfaces, DWORD cguidInterfaceCount, LPSTR mszCards, LPDWORD pcchCards)
+{
+    FIXME(": stub\n");
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return SCARD_F_INTERNAL_ERROR;
+}

dlls/winscard/winscard.spec

@@ -34,7 +34,7 @@
 @ stub SCardIntroduceReaderGroupW
 @ stub SCardIntroduceReaderW
 @ stub SCardIsValidContext
-@ stub SCardListCardsA
+@ stdcall SCardListCardsA(long ptr ptr long str long)
 @ stub SCardListCardsW
 @ stub SCardListInterfacesA
 @ stub SCardListInterfacesW