[MIPS] Fix __fls for non-MIPS32/MIPS64 cpus

Only MIPS32 and MIPS64 CPUs implement clz/dclz. Therefore don't export
__ilog2() for non MIPS32/MIPS64 cpus and use generic __fls bitop code for
these cpus.
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

include/asm-mips/bitops.h

@@ -558,6 +558,8 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long *
 	__clear_bit(nr, addr);
 }
 
+#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
+
 /*
  * Return the bit position (0..63) of the most significant 1 bit in a word
  * Returns -1 if no 1 bit exists
@@ -596,8 +598,6 @@ static inline unsigned long __fls(unsigned long x)
 	return __ilog2(x);
 }
 
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-
 /*
  * __ffs - find first bit in word.
  * @word: The word to search
@@ -654,6 +654,7 @@ static inline int ffs(int word)
 #else
 
 #include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/fls.h>
 #include <asm-generic/bitops/fls64.h>