mb862xxfb: fix acceleration module license

mb862xxfb_accel built as a separate module, but it does not have a
MODULE_LICENSE, so it taints the kernel.  Add a MODULE_LICENSE to it (same
as mb862xxfb license).

mb862xxfb_accel: module license 'unspecified' taints kernel.

Or should mb862xxfb_accel be built into the mb862xxfb binary file instead?
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Alexander Shishkin <virtuoso@slind.org>
Cc: Valentin Sitdikov <v.sitdikov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/mb862xx/mb862xxfb_accel.c

@@ -16,6 +16,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
 #if defined(CONFIG_OF)
@@ -330,3 +331,5 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
 	info->fix.accel = 0xff;	/*FIXME: add right define */
 }
 EXPORT_SYMBOL(mb862xxfb_init_accel);
+
+MODULE_LICENSE("GPL v2");