asset-hub-rococo: genesis config presets added #7204

Job	Run time
set-image	8s
check-runtime-migration (westend)	6m 40s
check-runtime-migration (rococo)	4m 22s
check-runtime-migration (asset-hub-westend)	4m 17s
check-runtime-migration (asset-hub-rococo)	6m 19s
check-runtime-migration (bridge-hub-westend)	3m 48s
check-runtime-migration (bridge-hub-rococo)	3m 49s
check-runtime-migration (contracts-rococo)	3m 43s
check-runtime-migration (collectives-westend)	3m 46s
check-runtime-migration (coretime-rococo)	3m 56s
All runtime migrations passed	1s
	40m 49s

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