Remove stray sys_swapon() declaration

* linux/syscall.h: Remove stray sys_swapon() declaration.
* linux/mips/syscallent.h: Include dummy.h with correct relative path.
* linux/dummy.h: Tweak one place where spaces are used instead of tabs.
* linux/dummy_check.sh: New script. It helps in finding stray syscall
handler declarations.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
4 files changed