slang: Use -fno-strict-aliasing where needed

Use -fno-strict-aliasing here so we don't have to use it globally

Change-Id: I4fa11b032163e218606db1ca9ee9c704803f450f
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
Merge branch 'linaro_android_4.4.2' of http://android.git.linaro.org/git-ro/platform/frameworks/compile/slang into cm-11.0