defconfig: Enable QOS related configs for msm8226

This patch is required to enable QOS functions in kernel.
U32 and MARK are required for deep packet inspection and
classifying priority flows as required.

CRs-Fixed: 579146
Change-Id: I5069d52b986340fdb9587756510a97c0fd95eb95
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>