Specify -msse3 on host as on target.

Make the host and the target x86 build more uniform by using the same machine flags.
Its unlikely Android has ever been built on a machine without SSE3 support.

Bug: 8068608
Change-Id: I19635528b61bf2c6faf02c2e575b1d9bf8025d3a
CTS: work around ClassLoader limitation

Trying to use reflection on classes loaded from a different ClassLoader
than the system one caused SecurityException since you can't load
certain packages.

Adding them to the boot classpath forces them to be in the same
ClassLoader.

Change-Id: Id518ab0a99da6defac525c0ad430a63f600ce85f
CLANG/llvm: use graphite for TARGET_ARCH: ARM

PS2: add missing \... why was this in gerrit with syntax errors?

Change-Id: I70655a3660ca538584014a350cd305c3c3f8753a