m68k: switch to generic extable.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 3fadc4a..67b3481 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -4,6 +4,7 @@
 #include <asm/uaccess_mm.h>
 #endif
 
+#include <asm/extable.h>
 #ifdef CONFIG_CPU_HAS_NO_UNALIGNED
 #include <asm-generic/uaccess-unaligned.h>
 #else