[MIPS] Use DEFINE_SPINLOCK instead of SPIN_LOCK_UNLOCKED.

Signed-off-by: NMilind Arun Choudhary <milindchoudhary@gmail.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/basler/excite/excite_setup.c

@@ -63,7 +63,7 @@ volatile void __iomem * const ocd_base = (void *) (EXCITE_ADDR_OCD);
 volatile void __iomem * const titan_base = (void *) (EXCITE_ADDR_TITAN);
 
 /* Protect access to shared GPI registers */
-spinlock_t titan_lock = SPIN_LOCK_UNLOCKED;
+DEFINE_SPINLOCK(titan_lock);
 int titan_irqflags;