Only take the last line of output for ndk-build DUMP_XXXX

This ensures that if Application.mk or Android.mk do print
something with $(info ...), it doesn't get injected into
the result of DUMP_XXX.

See https://groups.google.com/d/msg/android-ndk/-/ew0lTWGr1UEJ
for original discussion on android-ndk forum.

Change-Id: I4089aa7aa6a003a5953b93625f765b4988b35895
2 files changed