input_devicemgr: Apply change of function name

input_devicemgr: Apply change of function name

This change should be applied with follow commit.

commit 6b492bf069a1a8754ebac49b6caf42d91ccd0c04 (HEAD -> dnd)
Author: Seunghun Lee <shiin.lee@samsung.com>
Date:   Thu Aug 11 09:45:03 2022 +0900

    seat: Rename ds_seat_keyboard_destroy_grab properly

    This renames ds_seat_keyboard_destroy_grab to
    ds_seat_keyboard_grab_destroy

    The function takes ds_seat_keyboard_grab as a first argument, and we
    use, by convention, name of object at the beginning of function
name.

Change-Id: Id993400d0376c7cef4924a1641d186bb1452e03c