mpc86xx: Double local bus clock divider

The local bus clock divider should be doubled for both 8610 and 8641.
Signed-off-by: NTrent Piepho <tpiepho@freescale.com>
Acked-by: NKumar Gala <galak@kernel.crashing.org>
Acked-by: NJon Loeliger <jdl@freescale.com>

cpu/mpc86xx/cpu.c

@@ -112,6 +112,7 @@ checkcpu(void)
 #endif
 	clkdiv = lcrr & LCRR_CLKDIV;
 	if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) {
+		clkdiv *= 2;
 		printf("LBC:%4lu MHz\n",
 		       sysinfo.freqSystemBus / 1000000 / clkdiv);
 	} else {