Use client handle for sending output result

Use client handle for sending output result

- Requirement:
mmi core wants to control client when mmi manager sends output result to
proper client which set specified event.

- Solution:
This patch fixes parameter of mmi_api_handler_send_result() function
from app id to client handle. Through this change and function of mmi
client module, mmi core can control clients when mmi manager sends
output result to clients which set specified event.

Change-Id: Iee2f0e4c65cc2aeabcec09330264904bfb682052
Signed-off-by: Suyeon Hwang <stom.hwang@samsung.com>