Modify some configs for ppc to enable the libqtopengl4 support.
This fixes [YOCTO #848]
(From OE-Core rev: cc6763b81fafddcb112a6126373c594e3ec4b140)
Signed-off-by: Mei Lei <lei.mei@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>