ARM: dts: msm: added 2nd DP and eDP for SA8195p

Added second DP and eDP TX.
Added second DP/USB PHY, DP-only PHY and eDP PHY.
Added interface 4 and 5 for DP and eDP TX.

Change-Id: If4f0481ef5f0903f06eafced519309da04f6d081
Signed-off-by: Jim Wang <jimwan@codeaurora.org>