Remove non-ascii characters from fat code

This code contains some non-ascii characters in comment lines and code.
Most editors do not display those characters properly and editing those
files results always in diffs at these places which are usually not required
to be changed at all. This is error prone.

So, remove those weird characters and replace them by normal C-style
equivalents for which the proper defines were already in the header.

Signed-off-by: Remy Bohmer <linux@bohmer.net>

fs/fat/fat.c

@@ -184,7 +184,7 @@ static void get_name (dir_entry *dirent, char *s_name)
 	if (*s_name == DELETED_FLAG)
 		*s_name = '\0';
 	else if (*s_name == aRING)
-		*s_name = 'å';
+		*s_name = DELETED_FLAG;
 	downcase (s_name);
 }
 
@@ -489,7 +489,7 @@ get_vfatname(fsdata *mydata, int curclust, __u8 *cluster,
 
 	l_name[idx] = '\0';
 	if (*l_name == DELETED_FLAG) *l_name = '\0';
-	else if (*l_name == aRING) *l_name = 'å';
+	else if (*l_name == aRING) *l_name = DELETED_FLAG;
 	downcase(l_name);
 
 	/* Return the real directory entry */

include/fat.h

@@ -67,7 +67,7 @@
 #define ATTR_VFAT     (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
 
 #define DELETED_FLAG	((char)0xe5) /* Marks deleted files when in name[0] */
-#define aRING		0x05	     /* Used to represent 'å' in name[0] */
+#define aRING		0x05	     /* Used as special character in name[0] */
 
 /* Indicates that the entry is the last long entry in a set of long
  * dir entries