hal/sm_io/modules/fmc130m_4ch/*: fix fmc130m_4ch delay function

The delay function was acting only on the delay line selection
instead of the actual delay value.
Makefile: add FMC130M_4CH type option

For now, we select between the active and passive version
of the fmc130m_4ch board via variables in the Makefile and
defines within the C code. Figure it out a better way to put
this.

This fixes #32, at least for now, github issue.