Register application info when ping delivered

If the application is executed using fast launch option of the
app_launcher tool, there is a timing issue.
When the app process is slow to enter the main function, amd does not
know the process existence. To prevent the timing issue, launchpad sends
the launches process list to amd when ping request is received.

Change-Id: If7dea099493e0442b2a09137467238682c63d66e
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>