vmm: vlapic resume can eat 100% CPU by vlapic_callout_handler

Suspend/Resume of Win10 leads that CPU0 is busy on handling interrupts.

Win10 does not use LAPIC timer to often and in most cases, and I see it
is disabled by writing 0 to Initial Count Register (for Timer).

During resume, restart timer only for enabled LAPIC and enabled timer
for that LAPIC.

Reviewed by: markj
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33448