6266961 Jitter seen in cyclics on x86 due to trunc. error in apic_timer_reprogram

[dan.m...@sun.com]

Author: dmick
Repository: /hg/onnv/onnv-gate
Revision: 412c5def9c03c31b29965d68505f24ea66a50010
Log message:
6266961 Jitter seen in cyclics on x86 due to trunc. error in 
apic_timer_reprogram
6486473 APIC timer divisor register only initialized on CPU0

Files:
        update: usr/src/uts/i86pc/io/pcplusmp/apic.c
        update: usr/src/uts/i86pc/io/pcplusmp/apic.h