display: Relocate proc_condition_funcs()

display: Relocate proc_condition_funcs()

There are three functions to get display lock, unlock, state transition by external request.
proc_condition_lock()/proc_condition_unlock()/proc_condition()
Those functions rules are all the same, so they are relocated.

This function is added to display-lock.
- int display_lock_proc_condition(PMMsg *data);

Change-Id: I10dc0f14d3e7b2bc52a0c11fb1e256c986191eec
Signed-off-by: Yunhee Seo <yuni.seo@samsung.com>