i386/17800:PATCH problem with statclock initialization (NEW Patch)

[Charlie Schluting]

I had the same problem described in this PR with a Dell Latitude CPt. I 
believe its the same motherboard, or very similar. In both 5.2.1 and 
6-CURRENT I couldn't get cpu usage stats.

Jose's patch fixes it... though the patch is no longer valid in 
6-CURRENT (from cvs 2 days ago).

New patch. Same content, different location:
---------------------------------------------------------------------
--- sys/i386/isa/clock.c.old    Thu Nov 18 11:18:59 2004
+++ sys/i386/isa/clock.c        Thu Nov 18 11:12:10 2004
@@ -946,6 +946,7 @@
         /* Initialize RTC. */
         writertc(RTC_STATUSA, rtc_statusa);
         writertc(RTC_STATUSB, RTCSB_24HR);
+       rtcin(RTC_INTR); /* clear any pending interrupt */

         /* Don't bother enabling the statistics clock. */
         if (!statclock_disable) {
---------------------------------------------------------------------

Tested, and it works.
Please commit :)

-Charlie Schluting