MIPS: Fix inconsistent formatting inside /proc/cpuinfo

There is a missing " " inside /proc/cpuinfo.

The bad commit was:
commit a96102be700f87283f168942cd09a2b30f86f324
Author: Steven J. Hill <sjhill@mips.com>
Date:   Fri Dec 7 04:31:36 2012 +0000
MIPS: Add printing of ISA version in cpuinfo.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4988/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/proc.c

@@ -67,7 +67,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	if (cpu_has_mips_r) {
 		seq_printf(m, "isa\t\t\t:");
 		if (cpu_has_mips_1)
-			seq_printf(m, "%s", "mips1");
+			seq_printf(m, "%s", " mips1");
 		if (cpu_has_mips_2)
 			seq_printf(m, "%s", " mips2");
 		if (cpu_has_mips_3)