Pull up following revision(s) (requested by tsutsui in ticket #1003):
sys/arch/luna68k/dev/timekeeper.h: revision 1.3
sys/arch/luna68k/dev/timekeeper.c: revision 1.11
sys/arch/luna68k/dev/timekeeper.c: revision 1.12
sys/arch/luna68k/dev/timekeeper.c: revision 1.13
Whitespace cleanup.
Fix offset of DS1287A NVRAM address on LUNA-II.
Add an initialization function of DS1287A RTC and call it during attach.
It looks the boot firmware doesn't initialize the control registers
of DS1287A (while it resets NVRAM settings) and RTC oscillator is not
started properly after replacement.
Now my LUNA-II can keep RTC properly even after reboot.

(bouyer)