display: Relocate lcd_on_direct()

display: Relocate lcd_on_direct()

lcd_on_direct() is used to lcd turn on directly by key-event, proc_change_state.. etc.
It is called under the specific condition.

To relocate lcd_on_direct(), update_display_locktime() is also relocated.

For wearable plugin, this wrapper is added.
- int display_plugin_lcd_on_procedure(int state, enum device_flags flag);

New functions are added below display-state-transition
- void display_state_transition_update_lock_screen_timeout(int timeout);
    -> This function sets lock screen timeout value and update.
       It replaces update_display_locktime()

New function is added below display-panel
- void display_panel_lcd_on_direct(enum device_flags flags);
    -> This replaces lcd_on_direct()

Change-Id: I5628e230ec0fcc9a0ff36b31966ffbda85d92d69
Signed-off-by: Yunhee Seo <yuni.seo@samsung.com>