[PATCH] Adapt drivers/char/vt_ioctl.c to non-x86

This code uses the x86 (non-AMD-ELAN) value of CLOCK_TICK_RATE instead of
CLOCK_TICK_RATE itself, which is wrong for other archs.

Signed-off-by: Emmanuel Colbus <emmanuel.colbus@ensimag.imag.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>