Fix typo in sync_constant_test_bit()s name.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>

===================================================================
--- a/include/asm-i386/sync_bitops.h
+++ b/include/asm-i386/sync_bitops.h
@@ -130,7 +130,7 @@ static inline int sync_test_and_change_b
 	return oldbit;
 }
 
-static __always_inline int sync_const_test_bit(int nr, const volatile unsigned long *addr)
+static __always_inline int sync_constant_test_bit(int nr, const volatile unsigned long *addr)
 {
 	return ((1UL << (nr & 31)) &
 		(((const volatile unsigned int *)addr)[nr >> 5])) != 0;

--