ARM: dts: msm: Enable ESD check and DFPS feature for SDM450

Enable FHD+ panel ESD check. This is a video mode panel, also
can support DFPS feature, so enable that feature.

Change-Id: I5a6c23b2189c89c79cc80ad8649fbcc183511ee4
Signed-off-by: Yuan Zhao <yzhao@codeaurora.org>