uuid: don't export guid_index and uuid_index

These are only used in uuid.c and vsprintf.c and aren't something modules
should use directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

lib/uuid.c

@@ -22,9 +22,7 @@
 #include <linux/random.h>
 
 const u8 guid_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15};
-EXPORT_SYMBOL(guid_index);
 const u8 uuid_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
-EXPORT_SYMBOL(uuid_index);
 
 /***************************************************************
  * Random UUID interface