[ECOS] Need extra libraries when linking eCos tests

[Matthew H. Gerlach]

Hi gang,

I have a custom arm based target, whose implementation of the
hal_diag_*() and hal_hardware_init() and hal_clock_initialize() call
functions in a separate library.  Is there an easy way at config time or
make time to add this library to the linking of eCos tests?  At the
moment it looks like I would have manually hack quite a few of the
automatically generated makefiles.

Thanks,

Matthew H. Gerlach