This driver supports various HID events including hotkeys.
Dell XPS 13 9350 requires it for the wireless hotkey.
Signed-off-by: NAlex Hung <alex.hung@canonical.com>
Reviewed-and-tested-by: NAndy Lutomirski <luto@kernel.org>

[dvhart: Kconfig help typo fix and INPUT_SPARSEKMAP fix from Sedat Dilek]
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>