gpu: pvr: Update to DDK 1.8@2198402

 - Implemented a DC API change which queues a dummy display flip to
   workaround a rare and difficult to reproduce synchronization
   deadlock.
 - Eliminate log spam from Linux shrinker integration.

Conflicts:
	drivers/gpu/pvr/pvrversion.h

Change-Id: I11fdf76b3f8bc191a0c261a120eeaa19352d66e7
gpu: pvr: bypass compat check if version is same but build # is different