MIPS: Fix up inconsistency in panic() string argument.

Panic() invokes printk() to add a \n internally, so panic arguments should
not themselves end in \n.  Panic invocations in arch/mips and elsewhere
are inconsistently sometimes terminating in \n, sometimes not.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/ath79/setup.c

@@ -134,7 +134,7 @@ static void __init ath79_detect_sys_type(void)
 		break;
 
 	default:
-		panic("ath79: unknown SoC, id:0x%08x\n", id);
+		panic("ath79: unknown SoC, id:0x%08x", id);
 	}
 
 	sprintf(ath79_sys_type, "Atheros AR%s rev %u", chip, rev);