sync_test: Use -fno-strict-aliasing

Use -fno-strict-aliasing here so we don't have to use it globally.
Performance on tests isn't important anyway.

Change-Id: I92ae7209ced60176cc5608f32b8ff6a911c09f10
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
corkscrew: Fix build with gcc 4.8

gcc 4.8 has a new warning for unused parameters - we need to override
-Werror on that.

Change-Id: Ia2a831a96750ae105440291c636b80382a5702fa
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>