frameworks/base: Fix aliasing violations

Fix violations of strict aliasing rules

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

frameworks/base: Fix various aliasing violations

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

frameworks/base: Fix compile errors

Fix ISO C++11 incompatibility in TextLayoutCache and
aliasing violation in FontRenderer

Change-Id: I19a9560737005e72f706c12c0ccfdcd0c7765b06
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>