MIPS: BCM63XX: fix revision ID width

The REVID is only 8 bit wide.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5007/
Acked-by: John Crispin <blogic@openwrt.org>
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 35e18e9..911fd7d 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -126,7 +126,7 @@
 const char *get_system_type(void)
 {
 	static char buf[128];
-	snprintf(buf, sizeof(buf), "bcm63xx/%s (0x%04x/0x%04X)",
+	snprintf(buf, sizeof(buf), "bcm63xx/%s (0x%04x/0x%02X)",
 		 board_get_name(),
 		 bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev());
 	return buf;