[fix] : Fixed cp command

Author: Hayao0819

build.sh

@@ -730,9 +730,9 @@ make_customize_airootfs() {
 
     # Replace /etc/mkinitcpio.conf if Plymouth is enabled.
     if [[ "${boot_splash}" = true ]]; then
-        cp "${script_path}/mkinitcpio/mkinitcpio-plymouth.conf" "${airootfs_dir}/etc/mkinitcpio.conf"
+        cp -f "${script_path}/mkinitcpio/mkinitcpio-plymouth.conf" "${airootfs_dir}/etc/mkinitcpio.conf"
     else
-        cp "${script_path}/mkinitcpio/mkinitcpio.conf" "${airootfs_dir}/etc/mkinitcpio.conf"
+        cp -f "${script_path}/mkinitcpio/mkinitcpio.conf" "${airootfs_dir}/etc/mkinitcpio.conf"
     fi
 
     # customize_airootfs options