[Buildroot] [PATCH v1] package/libinput: bump version to 1.15.4

[Peter Korsgaard]

>>>>> "Peter" == Peter Seiderer <ps.report at gmx.net> writes:

 > For details see [1].
 > [1] https://lists.freedesktop.org/archives/wayland-devel/2020-March/041332.html

 > Signed-off-by: Peter Seiderer <ps.report at gmx.net>

Given the small amount of changes compared to 1.15.3, committed to
2020.02.x - Thanks.

-- 
Bye, Peter Korsgaard