ARM: dts: reduce on/off time for nt35597 dsc panels

Reduce the wait on each of the commands for the
on/off sequences of the nt35587 dsc command and
video mode panels. This optimizes the suspend/resume
delays on these panels.

CRs-Fixed: 1048778
Change-Id: Ia5602cd4c612b8aacbdf27206a0a28cb50858911
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>