exfat: release 6.0.0 version

This version number is sync with linux mainline.
Major changes are:
 - Use updated exfat_chain directly instead of snapshot values  in rename.
 - fix the error code of rename syscall.
 - cleanup and suppress the superfluous error messages.
 - remove duplicate directory entry update.
 - fix integer overflow on large partition.

Signed-off-by: Namjae Jeon <[email protected]>

Author: namjaejeon

exfat_fs.h

@@ -17,7 +17,7 @@
 #define EXFAT_SUPER_MAGIC       0x2011BAB0UL
 #endif
 
-#define EXFAT_VERSION		"5.19.1"
+#define EXFAT_VERSION		"6.0.0"
 
 #define EXFAT_ROOT_INO		1