Turn O3 on for the rest of the Cflags

This is an implementation of this commit from Justarchi

https://github.com/JustArchi/android_build/commit/0cf89401cc8092dda959b5746ec4899fda756cec

Change-Id: I5c9c4c62bd2fc60b46ac432ba2b668eedfd239bc
Revert "Turn O3 on for the rest of the Cflags"

Revert until Sepolicy issue is resolved

This reverts commit d67838fed01b65e97e8d474863d28bbc6e5e2239.

Change-Id: Id2522075904845bc65c78f8d2d973947596e09a8
Revert "Revert "Turn O3 on for the rest of the Cflags""

Becouse AJ is a whore... see link for details

https://github.com/TEAM-Gummy/android_frameworks_base/commit/ad6f3364a3e370b32cb7e265b89037b7e641f142

This reverts commit c55517d7cdb74e34bfe7d49d84ada4488c9a0239.
colorize non-fatal javac stderr yellow (and actually display it... at all)

woops!

Signed-off-by: nuclearmistake <nuclearmistake@gmail.com>
Change-Id: I984f428022a68a825aa041866e8d459bd6611f71