libhugetlbfs: not build obj32 for powerpc64
If obj32 needed, user can build lib32-libhugetlbfs.
Fix the below build issue for 64bit powerpc boards:
| fatal error: gnu/stubs-32.h: No such file or directory
| # include <gnu/stubs-32.h>
| ^
| compilation terminated.
| make: *** [obj32/elflink.o] Error 1
(From meta-openembedded rev:
cd63a38d0ac5daabdbf12ba13c20b492b37ac70e)
Signed-off-by: Ting Liu <b28495@freescale.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>