defconfig: arm: Enable DCC V2 on sdxpoorwills

Enable DCC V2 to dump various hardware entities such as the
instruction and data tlb's as well as the unified tlb, which are
a part of the cpu subsystem to an allocated buffer.

CRs-Fixed: 2215749
Change-Id: I9a2e57eb18420b67b136c4c2d800305e64d1a04f
Signed-off-by: Mao Jinlong <jinlmao@codeaurora.org>