ide-floppy: move all ioctl handling to ide-floppy_ioctl.c (take 2)

While at it:
- idefloppy_ioctl() -> ide_floppy_ioctl()

v2:
Fix for idefloppy_ioctl name change from Stephen Rothwell.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h
index 00ad5f9..914e4b2 100644
--- a/drivers/ide/ide-floppy.h
+++ b/drivers/ide/ide-floppy.h
@@ -50,7 +50,6 @@
 void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *);
 
 /* ide-floppy_ioctl.c */
-int ide_floppy_format_ioctl(ide_drive_t *, struct file *, unsigned int,
-			    void __user *);
+int ide_floppy_ioctl(struct inode *, struct file *, unsigned, unsigned long);
 
 #endif /*__IDE_FLOPPY_H */