arch:arm:configs: defconfig cleanup

Signed-off-by: Dan Trifan <jimsth@gmail.com>
introduce ANDROID_OOM_KILLER - thanks Dorimanx

Signed-off-by: Dan Trifan <jimsth@gmail.com>
Revert "perf: Use static variant of perf_event_overflow in core.c"

This reverts commit 87df95846411fcfcc2c85c9defc16671d9ed9c55.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
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.
gpu: pvr: bypass compat check if version is same but build # is different