MIPS: Move cache setup to setup_arch().

commit 97ce2c88f9 (jump-label: initialize
jump-label subsystem much earlier) breaks MIPS.  The jump_label_init()
call was moved before trap_init() which is where we initialize
flush_icache_range().

In order to be good citizens, we move cache initialization earlier so
that we don't jump through a null flush_icache_range function pointer
when doing the jump label initialization.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3822/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/smp.c

@@ -106,7 +106,7 @@ asmlinkage __cpuinit void start_secondary(void)
 #endif /* CONFIG_MIPS_MT_SMTC */
 	cpu_probe();
 	cpu_report();
-	per_cpu_trap_init();
+	per_cpu_trap_init(false);
 	mips_clockevent_init();
 	mp_ops->init_secondary();