Fix Static_executable, implement BUILD_HOST_static from Make

Static_executable was still using ModifyProperties, and was otherwise
missing things. Fix all of that up, and implement HostStaticBinaries,
which is the equivalent of BUILD_HOST_static in Make. That will default
host binaries to be static, which is useful for building SDK tools to
run with incompatible C libraries.

Change-Id: I2a62181b5d854b310edc8ae7a6bcbd30b89e7463
3 files changed