kitakami-common: sepolicy: Signed builds want this permissions, so they are granted.

allow untrusted_app proc:file r_file_perms;

allow untrusted_app proc_tty_drivers:file r_file_perms;

allow untrusted_app qemu_hw_prop:file r_file_perms;

allow untrusted_app qemu_sf_lcd_density_prop:file r_file_perms;

allow untrusted_app self:netlink_route_socket bind;

allow untrusted_app serialno_prop:file r_file_perms;