alpha: make short build log available for division routines

commit 3eec0291830e4c28d09f73bab247f3b59172022b upstream.

This enables the Kbuild standard log style as follows:

  AS      arch/alpha/lib/__divlu.o
  AS      arch/alpha/lib/__divqu.o
  AS      arch/alpha/lib/__remlu.o
  AS      arch/alpha/lib/__remqu.o

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>