build-gcc.sh: Don't strip Darwin/Linux GDB

libpython is statically linked to them which introduces symbols
that are only used by Python modules that must not be stripped.
This is not true of Windows which dynamically links to Python.

https://code.google.com/p/android/issues/detail?id=71396
Merge "build-gcc.sh: Don't strip Darwin/Linux GDB"
Update GCC configure options for mips and mips64 targets.

Change-Id: I0c5a2b4fc7b6e2eb509a76c1920044a4945ccea7
Merge "Update GCC configure options for mips and mips64 targets."
Remove tests/rs

BUG=15434762

Change-Id: I98b32866194d62496cc1587ec2de56de58b97800
Merge "Remove tests/rs"
Merge branch 'master' of https://android.googlesource.com/platform/ndk into HEAD