[MIPS] R4700: Fix build_tlb_probe_entry

Treat R4700 like R4600 in build_tlb_probe_entry. Without this fix kernel
will lock up.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mm/tlbex.c

@@ -224,8 +224,9 @@ static u32 final_handler[64] __cpuinitdata;
 static void __cpuinit __maybe_unused build_tlb_probe_entry(u32 **p)
 {
 	switch (current_cpu_type()) {
-	/* Found by experiment: R4600 v2.0 needs this, too.  */
+	/* Found by experiment: R4600 v2.0/R4700 needs this, too.  */
 	case CPU_R4600:
+	case CPU_R4700:
 	case CPU_R5000:
 	case CPU_R5000A:
 	case CPU_NEVADA: