Replace _host suffix with more standard -host suffix.

Most libraries use the "-host" suffix when building for the host. This
patch renames libext2 libraries to use -host instead of _host.

Bug: 24619596
TEST=make dist

(cherry picked from commit 6bbf89bfc608dac7b9c6dac1b86ce4d4001c259f)

Change-Id: I8da049df06bf25b52c7f434f10dc3eb07533194e
1 file changed