libgcc is kept behind libcrt.builtins to provide unwinder symbols and
any other missing symbols.
Bug: 29275768
Bug: 119007754
Test: m checkbuild
Change-Id: Ifb16ed87afc3391f8830d771971315515f929235
AUX is a new class, similar to TARGET
While TARGET defines toolchain for Application Processors
AUX is defining toolchains for arbitrary utility cores (DSPs, GPUs,
MCUs, etc). This allows building of non-android sources as part
of Android tree and avoid using prebuilts if source code is avaliable
Bug: 29635686
Change-Id: Ie755ea054b16c3e86369f5fb2ba6eb0b384af77f
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
