staging: exfat: cleanup blank line warnings

Fixes checkpatch.pl warnings:

  CHECK: Please don't use multiple blank lines
  CHECK: Blank lines aren't necessary after an open brace '{'
  CHECK: Please use a blank line after function/struct/union/enum
         declarations
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190902190329.18685-1-vvidic@valentin-vidic.from.hrSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/exfat/exfat.h

@@ -170,6 +170,7 @@ static inline u16 get_col_index(u16 i)
 {
 	return i >> LOW_INDEX_BIT;
 }
+
 static inline u16 get_row_index(u16 i)
 {
 	return i & ~HIGH_INDEX_MASK;

drivers/staging/exfat/exfat_core.c

@@ -11,7 +11,6 @@
 #include <linux/slab.h>
 #include "exfat.h"
 
-
 static void __set_sb_dirty(struct super_block *sb)
 {
 	struct exfat_sb_info *sbi = EXFAT_SB(sb);
@@ -1711,7 +1710,6 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
 	if (ret != FFS_SUCCESS)
 		return NULL;
 
-
 	/* byte offset in cluster */
 	byte_offset &= p_fs->cluster_size - 1;
 
@@ -1726,7 +1724,6 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
 	if (buf == NULL)
 		goto err_out;
 
-
 	ep = (struct dentry_t *)(buf + off);
 	entry_type = p_fs->fs_func->get_entry_type(ep);
 
@@ -1853,7 +1850,6 @@ void release_entry_set(struct entry_set_cache_t *es)
 	kfree(es);
 }
 
-
 static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
 						struct entry_set_cache_t *es,
 						sector_t sec, s32 off, u32 count)

drivers/staging/exfat/exfat_super.c

@@ -3017,7 +3017,6 @@ static void exfat_truncate(struct inode *inode, loff_t old_size)
 
 static int exfat_setattr(struct dentry *dentry, struct iattr *attr)
 {
-
 	struct exfat_sb_info *sbi = EXFAT_SB(dentry->d_sb);
 	struct inode *inode = dentry->d_inode;
 	unsigned int ia_valid;