Call initializecpucache() on the BSP for i386 in the !XEN case. This was

my bug in r271409 that I noticed while reviewing r272492.

sys/i386/i386/machdep.c

@@ -3326,9 +3326,7 @@ init386(first)
 	setidt(IDT_GP, &IDTVEC(prot),  SDT_SYS386TGT, SEL_KPL,
 	    GSEL(GCODE_SEL, SEL_KPL));
 	initializecpu();	/* Initialize CPU registers */
-#ifdef PC98
 	initializecpucache();
-#endif
 
 	/* make an initial tss so cpu can get interrupt stack on syscall! */
 	/* Note: -16 is so we can grow the trapframe if we came from vm86 */