Add static library build

This will be used in, to avoid a dependency on the
system shared library.

Also make the minizip static on the host, and make zlib a group on the
host.  zlib shouldn't be a shared library on the host, and it can't be a
static library because gn makes it empty and has things that depend on
it also depend on the .o files. This causes a linker error on mac when
linking against an empty archive.

Change-Id: I2577092c9e537acfd97fcbfd6dc0c2b6e851dd30
1 file changed