weston-ivi-shell: Update ivi-layout.h from weston-ivi-shell.

ivi-shell supports UpdateInputEventAcceptanceOn.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@denso.co.jp>
ivi-layermanagement-api: support ilm_UpdateInputEventAcceptanceOn.

Move the api definition from clinent to control. And then add
implementation of it. The api calls corresponding protocol,
ivi_controller_surface.set_input_focus implemented in ivi-controller.so.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@denso.co.jp>
weston-ivi-shell: support UpdateInputEventAcceptanceOn.

This api bypasses request from ilmControl api to ivi-layout interanal
API, ivi_layout_UpdateInputEventAcceptanceOn.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@denso.co.jp>