arch: arm64: defconfig: Enable veth_ipa

Enable VETH IPA on msm-5.4.

Change-Id: Ie340395a934d794985a6179f0d04787eed90030e
Acked-by: Sarosh Hasan <sarohasa@qti.qualcomm.com>
Signed-off-by: Akshay Pandit <pandit@codeaurora.org>