In some cases, especially .Net toolchain needs 64bit libs to execute
even though 32bit build environment.
It's a little weird but possble because almost archtecture of build machine is 64bit.
Change-Id: I0d8df53d4743a4fa1b2c00d6aeeeed77e8b964cf Signed-off-by: Chan Lee <chan45.lee@samsung.com>