laptop_defconfig: Add a few options for fedora

This adds a few options to make the x13s more usable on fedora.

* CONFIG_SECCOMP for chronyd (to update system clock)
* CONFIG_FW_LOADER_COMPRESS for linux-firmware (fedora has xz compressed
	firmware)
* CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER for initrd
	loading with the EFI stub (used with sd-boot)

Two sc8280xp options became removed from make savedefconfig
as well, they don't appear to exist in this branch.

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>