docker: fix ulimits for eos container #2785

Job	Run time
go	11s
integration	1m 39s
docker (docker/Dockerfile.revad) / docker	1m 23s
docker (docker/Dockerfile.revad-eos) / docker	40s
docker (docker/Dockerfile.reva) / docker	32s
docker (docker/Dockerfile.revad-ceph) / docker	1m 47s
docker (docker/Dockerfile.revad-eos) / docker	50s
acceptance-1 / compose	1m 56s
acceptance-2 (1) / compose	5m 20s
acceptance-2 (2) / compose	8m 59s
acceptance-2 (3) / compose	6m 42s
acceptance-2 (4) / compose	6m 30s
acceptance-2 (5) / compose	5m 43s
acceptance-2 (6) / compose	8m 17s
litmus (litmus-2) / compose	2m 4s
litmus (litmus-1) / compose	2m 5s
	54m 38s

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