mgmt: update img_mgmt_slot_in_use for ramload with revert mode

We should not block erasing pending images when using ramload with
revert mode, because uploading multiple confirmed images with the same
version would brick the device (preventing future FW updates). Update
the dependencies of img_mgmt_slot_in_use to account for this.

Signed-off-by: Daniel DeGrasse <ddegrasse@tenstorrent.com>