m68k,nommu: fix implicit cast from __user in __{get,put}_user_asm()

The assembly for __get_user_asm() & __put_user_asm() uses memcpy()
when the size is 8.

However, the pointer is always a __user one while memcpy() expects
a plain one and so this cast creates a lot of warnings when using
Sparse.

So, fix this by adding a cast to 'void __force *' at memcpy()'s
argument.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>

arch/m68k/include/asm/uaccess_no.h

@@ -42,7 +42,7 @@ static inline int _access_ok(unsigned long addr, unsigned long size)
 	__put_user_asm(__pu_err, __pu_val, ptr, l);	\
 	break;						\
     case 8:						\
-	memcpy(ptr, &__pu_val, sizeof (*(ptr))); \
+	memcpy((void __force *)ptr, &__pu_val, sizeof(*(ptr))); \
 	break;						\
     default:						\
 	__pu_err = __put_user_bad();			\
@@ -85,7 +85,7 @@ extern int __put_user_bad(void);
 	    u64 l;						\
 	    __typeof__(*(ptr)) t;				\
 	} __gu_val;						\
-	memcpy(&__gu_val.l, ptr, sizeof(__gu_val.l));		\
+	memcpy(&__gu_val.l, (const void __force *)ptr, sizeof(__gu_val.l)); \
 	(x) = __gu_val.t;					\
 	break;							\
     }								\