display: Relocate touch_event_blocked()

display: Relocate touch_event_blocked()

touch_event_blocked() checks touch event blocking during lcd_on/off_procedure().
For relocating lcd_on/off_procedure(), touch_event_blocked() is also relocated.

This functions are added below display-misc.
- int display_misc_set_touch_event_blocked(bool blocked);
- bool display_misc_is_touch_event_blocked(void);
    -> This replaces touch_event_blocked()

Change-Id: Icaa609ad4a4e168663dd85556dea2c448b5747bd
Signed-off-by: Yunhee Seo <yuni.seo@samsung.com>