[IA64] SPIN_LOCK_UNLOCKED macro cleanup in arch/ia64

SPIN_LOCK_UNLOCKED macro cleanup, use __SPIN_LOCK_UNLOCKED instead.

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index 93d5a3b..e3be21c 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -145,7 +145,7 @@
 # endif
 } unw = {
 	.tables = &unw.kernel_table,
-	.lock = SPIN_LOCK_UNLOCKED,
+	.lock = __SPIN_LOCK_UNLOCKED(unw.lock),
 	.save_order = {
 		UNW_REG_RP, UNW_REG_PFS, UNW_REG_PSP, UNW_REG_PR,
 		UNW_REG_UNAT, UNW_REG_LC, UNW_REG_FPSR, UNW_REG_PRI_UNAT_GR