ARM: dts: msm: Delete active display property from correct node for SDM845

On SDM845 CDP and MTP with 4k display, default active display
property is deleted in respective device tree to set appropriate
active display. This change deletes active display from
dual dsi in command mode which is default display for SDM845
CDP and MTP with non 4k display.

Change-Id: I8de6b4238af97bb4b77b2b19e69542debd362777
Signed-off-by: Shashank Babu Chinta Venkata <sbchin@codeaurora.org>