Fixed: fs: file_table_c: Missing blank line warnings and struct declaration improved

Fixed-
	WARNING: Missing a blank line after declarations
	WARNING: Missing a blank line after declarations
	Declaration format: improved struct file declaration format

Signed-off-by: Mohit0404 <mohitpawar@mitaoe.ac.in>
Link: https://lore.kernel.org/r/20240727072134.130962-2-mohitpawar@mitaoe.ac.in


Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>