MPC86xx: fix build warnings

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 3568023..dc53bee 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -101,7 +101,7 @@
 	if (sysinfo.freqLocalBus > LCRR_CLKDIV) {
 		printf("LBC:%4lu MHz\n", sysinfo.freqLocalBus / 1000000);
 	} else {
-		printf("LBC: unknown (LCRR[CLKDIV] = 0x%02x)\n",
+		printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n",
 		       sysinfo.freqLocalBus);
 	}