Misc fixes
1. Fix issue when APP_PLATFORM specified in env. var can't be adjusted
2. revert linux-x86 host compiler to the original glibc2.7
(when __USE_OLD_LINUX_HOST_GCC=yes) to generate binaries run on server
with very old libc.so
3. Fix issue about run-tests.sh --abi=armeabi-v7a-hard
4. Add 4.9 to some BROKEN_RUN
5. LOCAL_CPPFLAGS += -UNDEBUG for libc++ test becasue there are real work
done inside assert (bad, bad, bad) for some tests.
Change-Id: If9f507303186ba85fc9ed0962732d027a2dd246e
15 files changed
