staging: exfat: Rename variable 'ShortName' to 'short_name'

Fix checkpatch warning: Avoid CamelCase
Change all occurrences of identifier "ShortName" to "short_name"
Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com>
Link: https://lore.kernel.org/r/20200210183558.11836-15-pragat.pandya@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/exfat/exfat.h

@@ -263,7 +263,7 @@ struct dir_entry_t {
 	char name[MAX_NAME_LENGTH * MAX_CHARSET_SIZE];
 
 	/* used only for FAT12/16/32, not used for exFAT */
-	char ShortName[DOS_NAME_LENGTH + 2];
+	char short_name[DOS_NAME_LENGTH + 2];
 
 	u32 Attr;
 	u64 Size;

drivers/staging/exfat/exfat_super.c

@@ -1456,7 +1456,7 @@ static int ffsReadStat(struct inode *inode, struct dir_entry_t *info)
 			       sizeof(struct date_time_t));
 			memset((char *)&info->AccessTimestamp, 0,
 			       sizeof(struct date_time_t));
-			strcpy(info->ShortName, ".");
+			strcpy(info->short_name, ".");
 			strcpy(info->name, ".");
 
 			dir.dir = p_fs->root_dir;
@@ -2111,9 +2111,9 @@ static int exfat_readdir(struct file *filp, struct dir_context *ctx)
 	if (!de.name[0])
 		goto end_of_dir;
 
-	if (!memcmp(de.ShortName, DOS_CUR_DIR_NAME, DOS_NAME_LENGTH)) {
+	if (!memcmp(de.short_name, DOS_CUR_DIR_NAME, DOS_NAME_LENGTH)) {
 		inum = inode->i_ino;
-	} else if (!memcmp(de.ShortName, DOS_PAR_DIR_NAME, DOS_NAME_LENGTH)) {
+	} else if (!memcmp(de.short_name, DOS_PAR_DIR_NAME, DOS_NAME_LENGTH)) {
 		inum = parent_ino(filp->f_path.dentry);
 	} else {
 		loff_t i_pos = ((loff_t)EXFAT_I(inode)->fid.start_clu << 32) |