defconfig: msm: Disable DEVPORT config for msm8953_64

Disable CONFIG_DEVPORT config for msm8953_64
As selinux policy requires this node to be not
accessible to userspace.

CRs-Fixed: 2077590
Change-Id: I187626de63d36f4f1e102ae5f417c601f6cadd72
Signed-off-by: Mohammed Khajapasha <mkhaja@codeaurora.org>
Signed-off-by: Chetan C R <cravin@codeaurora.org>