Fix error related to "error: passing argument 2 of 'signal' from incompatible pointer type [-Wincompatible-pointer-types]".
Details in https://errors.yoctoproject.org/Errors/Details/850171/
Signed-off-by: Nguyen Dat Tho <tho3.nguyen@lge.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
