frameworks/base: Fix various aliasing violations

Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
frameworks/base: Fix aliasing violations

Fix violations of strict aliasing rules

Change-Id: Ia83db6a0be18f52e8f274c581c3b42f031b39247
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>