microblaze: Reversed logic in futex cmpxchg

futex_atomic_cmpxchg_inatomic exchanged if the values were
unequal rather than equal. This caused incorrect behavior
of robust futexes.
Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/futex.h

@@ -105,7 +105,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 
 	__asm__ __volatile__ ("1:	lwx	%1, %3, r0;		\
 					cmp	%2, %1, %4;		\
-					beqi	%2, 3f;			\
+					bnei	%2, 3f;			\
 				2:	swx	%5, %3, r0;		\
 					addic	%2, r0, 0;		\
 					bnei	%2, 1b;			\