plat-versatile cleanup:
- Removes the clock.c in plat-versatile that is no longer used
- Move ARM to use the generic clockdev.h header
* tag 'plat-versatile-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: Use generic clkdev.h header
ARM: plat-versatile: Remove unused clock.c file
Signed-off-by: Olof Johansson <olof@lixom.net>