Revert "jewel: change ramdisk offset for komodo kernel"

This reverts commit 1c739b53fe23ea331286d69f64173b9a60b9c8f5.
Revert "Revert "Revert "Revert "Revert "jewel: add system_select.xml overlay for roam only"""""

This reverts commit f4ba9df27441d4de3b277cccc704f16eb46a99ea.
Revert "jewel: use jewel kernel source for komodo kernel"

This reverts commit c3c2cbf06f88338157b74d693f1defd604045330.