[coreboot-gerrit] Change in coreboot[master]: lib: Upgrade LZMA Decoder to version 19.0

[Krystian Hebel (Code Review)]

Attention is currently required from: Harshit Sharma.
Krystian Hebel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/41963 )

Change subject: lib: Upgrade LZMA Decoder to version 19.0
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Patch Set 5:

(1 comment)

Patchset:

PS5: 
Just tested this on a ramstage that was copied to RAM before decompression (PPC64, mmap_helper_region_device is used because flash is protected with ECC) and I see a speed improvement. Before:
```
FMAP REGION: COREBOOT
Name                           Offset     Type           Size   Comp
cbfs master header             0x0        cbfs header        32 none
fallback/romstage              0x80       stage           51634 none
fallback/ramstage              0xca80     stage           23842 none
config                         0x12800    raw               177 none
revision                       0x12900    raw               674 none
(empty)                        0x12c00    null           315800 none
header pointer                 0x5fdc0    cbfs header         4 none

---------------

CBFS: Found 'fallback/ramstage' @0xca80 size 0x5d22 in mcache @0x00013070
Timestamp - starting to load ramstage: 4315892
Timestamp - starting LZMA decompress (ignore for x86): 4327646
Timestamp - finished LZMA decompress (ignore for x86): 4332315
Timestamp - finished loading ramstage: 4332708
```

After:
```
FMAP REGION: COREBOOT
Name                           Offset     Type           Size   Comp
cbfs master header             0x0        cbfs header        32 none
fallback/romstage              0x80       stage           55225 none
fallback/ramstage              0xd880     stage           26339 none
config                         0x13fc0    raw               177 none
revision                       0x140c0    raw               674 none
(empty)                        0x143c0    null           309720 none
header pointer                 0x5fdc0    cbfs header         4 none

---------------

CBFS: Found 'fallback/ramstage' @0xd880 size 0x66e3 in mcache @0x00013070
Timestamp - starting to load ramstage: 4321871
Timestamp - starting LZMA decompress (ignore for x86): 4334852
Timestamp - finished LZMA decompress (ignore for x86): 4339430
Timestamp - finished loading ramstage: 4339818
```

This gives ~2% shorter time required for decompressing ~10% bigger ramstage, so the change is somewhat noticeable. This ramstage is relatively small so printing the timestamps through serial may take more time than the decompression itself. Unfortunately I must print them, this port is not ready yet so I have no way of reading them later.