Fix epoll_wait syscall entries

* linux/arm/syscallent.h: Fix epoll_wait flags and handler.
* linux/m68k/syscallent.h: Fix epoll_wait flags.
* linux/microblaze/syscallent.h: Fix number of epoll_wait arguments.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
6 files changed