sparc64: Define SPARC default __fls function

__fls will now require a boot time patching on T4 and above.
Redefining it under arch/sparc/lib.

Signed-off-by: Vijay Kumar <vijay.ac.kumar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index 30aea56..d7a46e2 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -23,10 +23,10 @@ void clear_bit(unsigned long nr, volatile unsigned long *addr);
 void change_bit(unsigned long nr, volatile unsigned long *addr);
 
 int fls(unsigned int word);
+int __fls(unsigned long word);
 
 #include <asm-generic/bitops/non-atomic.h>
 
-#include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls64.h>
 
 #ifdef __KERNEL__