Bump third_party/lwip/repo from `e558963` to `ffce5ab` #2304

Job	Run time
Build Docker CHIP Build images - base	5m 15s
Build Docker CHIP Build images - base (-minimal)	38s
Build Docker CHIP Build images - stage 1 (-crosscompile)	1m 2s
Build Docker CHIP Build images - stage 2 (-ameba)	1m 52s
Build Docker CHIP Build images - stage 2 (-asr)	1m 8s
Build Docker CHIP Build images - stage 2 (-bouffalolab)	7m 44s
Build Docker CHIP Build images - stage 2 (-doxygen)	14s
Build Docker CHIP Build images - stage 2 (-efr32)	1m 34s
Build Docker CHIP Build images - stage 2 (-esp32)	2m 15s
Build Docker CHIP Build images - stage 2 (-infineon)	2m 18s
Build Docker CHIP Build images - stage 2 (-java)	48s
Build Docker CHIP Build images - stage 2 (-nxp)	5m 15s
Build Docker CHIP Build images - stage 2 (-nxp-zephyr)	2m 31s
Build Docker CHIP Build images - stage 2 (-nrf-platform)	3m 56s
Build Docker CHIP Build images - stage 2 (-telink)	4m 36s
Build Docker CHIP Build images - stage 2 (-telink-zephyr_3_3)	4m 14s
Build Docker CHIP Build images - stage 2 (-ti)	50s
Build Docker CHIP Build images - stage 2 (-tizen)	1m 59s
Build Docker CHIP Build images - stage 2 (-openiotsdk)	54s
Build Docker CHIP Build images - stage 3	0s
Build Docker CHIP Build images - vscode	0s
	49m 3s

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