disp: msm: dsi: change rule to initialize display in firmware

Request for display in firmware only if no display enabled form
the UEFI.

In the targets supporting dual DSI display having both displays
DT nodes part of the connector list, if only one display is
enabled from the UEFI, then the driver requests for display
in firmware for the second display. Getting the display panel node
from firmware is time taking process, and it can take up to
ten seconds. This causes a delay in adding the component for the second
display, resulting in a delay in bind calls for components of the
msm drm driver.

Change-Id: Ic0aa5ca890fc874d38d3e7eef745f2942e12f9bc
Signed-off-by: Rajeev Nandan <rajeevny@codeaurora.org>