Fix umount and umount2 syscall entries

* linux/aarch64/syscallent1.h (umount): Change nargs to 1.
* linux/avr32/syscallent.h: Likewise.
* linux/xtensa/syscallent.h: Likewise.
* linux/ia64/syscallent.h (umount2): Change nargs to 2.
* linux/arm/syscallent.h (umount, umount2): Fix sys_name.
* linux/bfin/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/metag/syscallent.h: (umount2): Fix sys_name.
* linux/or1k/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
19 files changed