defconfig: msm8996: Enable PAN emulation

Privilege Access Never (PAN) enforces the usage of
copy_to_user/copy_from_user and friends when kernel accesses data from
user space. If user space memory is accessed outside of these functions
a kernel panic occurs.

Change-Id: Ic2c6b504f5e0ced025bb5ba7848ec6c267d78f21
Signed-off-by: Naitik Bharadiya <bharad@codeaurora.org>