disp: msm: sde: add rev check for Lagoon target

Add required sde revision checks for lagoon target.
Also, update rscc branch offset for lagoon.

Change-Id: Id445caf6b584a6a35a4d9797e6d85aa9af9ee0bf
Signed-off-by: Jayaprakash <jmadiset@codeaurora.org>