8626 make pcplusmp and apix warning-free
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

@@ -846,11 +846,11 @@
 apic_cpu_add(psm_cpu_request_t *reqp)
 {
         int i, rv = 0;
         ulong_t iflag;
         boolean_t first = B_TRUE;
-        uchar_t localver;
+        uchar_t localver = 0;
         uint32_t localid, procid;
         processorid_t cpuid = (processorid_t)-1;
         mach_cpu_add_arg_t *ap;
 
         ASSERT(reqp != NULL);