MIPS: Use r4k_wait for OCTEON3 CPUs.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5636/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/idle.c

@@ -166,6 +166,7 @@ void __init check_wait(void)
 	case CPU_CAVIUM_OCTEON:
 	case CPU_CAVIUM_OCTEON_PLUS:
 	case CPU_CAVIUM_OCTEON2:
+	case CPU_CAVIUM_OCTEON3:
 	case CPU_JZRISC:
 	case CPU_LOONGSON1:
 	case CPU_XLR: