Add Statically Linked Libraries

Add GNU Static Lib Tool, which supports the --emit-static-lib
flag. For HIP, a static library archive will be created and
consist of HIP Fat Binary host object with the device images embedded.
Using llvm-ar to create the static archive. Also, delete existing
output file to ensure a new archive is created each time.

Reviewers: yaxunl, tra, rjmccall, echristo

Subscribers: echristo, JonChesterfield, scchan, msearles

Differential Revision: https://reviews.llvm.org/D78759