fbdev: Do not include <linux/fs.h> in header

Forward declare struct inode and remove the include statement.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-6-tzimmermann@suse.de

include/linux/fb.h

@@ -8,7 +8,6 @@
 
 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
 
-#include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/workqueue.h>
 #include <linux/notifier.h>
@@ -22,6 +21,7 @@ struct vm_area_struct;
 struct fb_info;
 struct device;
 struct file;
+struct inode;
 struct videomode;
 struct device_node;