fbdev: Remove trailing whitespaces

Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-29-tzimmermann@suse.de

drivers/video/fbdev/sbuslib.c

@@ -48,7 +48,7 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
 	unsigned long map_offset = 0;
 	unsigned long off;
 	int i;
-                                        
+
 	if (!(vma->vm_flags & (VM_SHARED | VM_MAYSHARE)))
 		return -EINVAL;
 
@@ -72,7 +72,7 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
 #define POFF_MASK	(PAGE_MASK|0x1UL)
 #else
 #define POFF_MASK	(PAGE_MASK)
-#endif				
+#endif
 				map_offset = (physbase + map[i].poff) & POFF_MASK;
 				break;
 			}