Disable default building of frotz kernel.
Disable default building of frotz kernel.

zarlo/Cosmos,tgiphil/Cosmos,fanoI/Cosmos,tgiphil/Cosmos,jp2masa/Cosmos,jp2masa/Cosmos,CosmosOS/Cosmos,CosmosOS/Cosmos,trivalik/Cosmos,CosmosOS/Cosmos,tgiphil/Cosmos,fanoI/Cosmos,fanoI/Cosmos,trivalik/Cosmos,jp2masa/Cosmos,zarlo/Cosmos,zarlo/Cosmos,CosmosOS/Cosmos,zarlo/Cosmos,trivalik/Cosmos