That indeed seems like a copy paste error.
The equivalent of i.MX 7 0x14 (100k pull down, slow slew rate) would be 0x2000 on i.MX 6ULL. The equivalent of 0x74 (100k pull up, slow slew rate) would be 0xa000 on i.MX 6ULL.
Since this change might cause side effect I will create a ticket.