Change security_manager_app_install return code

Change security_manager_app_install return code

So far, security_manager_app_install returned only
SECURITY_MANAGER_SUCCESS or SECURITY_MANAGER_ERROR_UNKNOWN,
which is not enough now.

Now, there is possibility, that security manager would reject
installation of some applciations on the basis of uid and users
home directory.
This function will return information about that now as return code.

Change-Id: I53b23b8318a756a8fbf4b804e49046cfa5acd4e0
Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>