ARM: dts: Add lane map settings in 8939 cdp for 2k panel

8939 has different lane map settings for the two dsi interfaces
requiredfor the 2k panel.
Add the lane map settings in 8939 cdp dtsi file for this particular
sharp 2k panel. This will override the default setting, if any, in
panel dtsi flle.

Change-Id: If3b36e0bc36dc90c4616fb3272b01d4e33e1bc0a
Signed-off-by: Vineet Bajaj <vbajaj@codeaurora.org>