defconfig: msm: Enable hardened user copy

Hardened user copy provides an extra layer of security checks when
copy_to_user/copy_from_user APIs are used to ensure data accesses are
valid. When invalid accesses are detected the kernel will forcibly
crash.

Change-Id: Ie13ef8a6ee1a3431d43c57a4b7d6e14985e5c33a
Signed-off-by: Ramakrishna Gottimukkula <rgottimu@codeaurora.org>