I am looking for some advice for configuring coreboot with a uImage fit payload for an mt8183 chromebook (Kukui Fennel)? I have said fitimage, I've modified the memlayout for the mt8183 board similar to https://github.com/coreboot/coreboot/commit/22e605c2c06f553b98131a87b634709aa1818e1f so that the fitimage fits in the cbfs and has space to load, and coreboot successfully builds. I've also enabled a bunch of debug settings for coreboot printing to serial. When flashing the ROM and rebooting, the serial console doesn't show anything past bootrom messages like so:

```
[DL] 00000000 00000000 010701

F0: 102B 0000
F3: 1006 0033 [0200]
F3: 4001 00E0 [0200]
F3: 0000 0000
V0: 0000 0000 [0001]
00: 1027 0002
01: 0000 0000
BP: 0C00 0251 [0000]
G0: 1182 0000
EC: 0004 0000 [0001]
S7: 0000 0000 [0000]
CC: 0000 0000 [0001]
T0: 0000 00DB [000F]
Jump to BL
```

I am happy to post any configuration that would be helpful. I am hoping to just get some serial output from coreboot at this point in time, regardless of the payload.