Revert "remove goldenleaf driver"

This reverts commit 07901954241c3d39855d11ea9f98cc676892971f.
Revert "fix compilation issue"

This reverts commit 9bbcf270522b51aa29afd7ab9576d2a1f4841721.
Revert "test fserve-Goldenleaf driver"

This reverts commit 485019c2f12d68b17da02f450368f3bea34e041f.
Revert "makefile: arm6 optimizations from fserve"

This reverts commit ff3e047bf6b9c7d5d80efd6713e7ef6376062dc8.