disp: msm: Decouple techpack components

Decouple each subcomponent by checking config flags during
compilation.
Add handling inside rotator debug to decouple event logging.

Change-Id: I3ac60444f9d18e20c28232324023e561a7aa4f96
Signed-off-by: Nilaan Gunabalachandran <ngunabal@codeaurora.org>