Since Linux 4.18 CONFIG_AUTOFS4_FS just enables CONFIG_AUTOFS_FS, its
description in fs/autofs/Kconfig reads:
This name exists for people to just automatically pick up the
new name of the autofs Kconfig option. All it does is select
the new option name.
It will go away in a release or two as people have
transitioned to just plain AUTOFS_FS.
# CONFIG_COMPAT_BRK is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_ATA=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_BINFMT_MISC=y
CONFIG_BLK_CGROUP_IOCOST=y
CONFIG_BLK_CGROUP_IOLATENCY=y