ubifs: Fix a typo in comment of ioctl2ubifs & ubifs2ioctl

Change 'convert' to 'converts'
Change 'UBIFS' to 'UBIFS inode flags'
Signed-off-by: NRock Lee <rockdotlee@gmail.com>
Signed-off-by: NRichard Weinberger <richard@nod.at>

fs/ubifs/ioctl.c

@@ -53,7 +53,7 @@ void ubifs_set_inode_flags(struct inode *inode)
  * ioctl2ubifs - convert ioctl inode flags to UBIFS inode flags.
  * @ioctl_flags: flags to convert
  *
- * This function convert ioctl flags (@FS_COMPR_FL, etc) to UBIFS inode flags
+ * This function converts ioctl flags (@FS_COMPR_FL, etc) to UBIFS inode flags
  * (@UBIFS_COMPR_FL, etc).
  */
 static int ioctl2ubifs(int ioctl_flags)
@@ -78,8 +78,8 @@ static int ioctl2ubifs(int ioctl_flags)
  * ubifs2ioctl - convert UBIFS inode flags to ioctl inode flags.
  * @ubifs_flags: flags to convert
  *
- * This function convert UBIFS (@UBIFS_COMPR_FL, etc) to ioctl flags
- * (@FS_COMPR_FL, etc).
+ * This function converts UBIFS inode flags (@UBIFS_COMPR_FL, etc) to ioctl
+ * flags (@FS_COMPR_FL, etc).
  */
 static int ubifs2ioctl(int ubifs_flags)
 {