make this work: add agpsupport and sysctl code
move agpsupport to drmkms to avoid circular dependencies.
turn on dynamic ldscript creation to handle link set symbol definitions
used in the automatic sysctl creation.
I don't know what was using this before (but it did not work since it
did not produce valid LDSCRIPT code) and now it does.
Enable dynamic link script generation to handle __{start,stop}_link_set_*
via a variable; perhaps delete the variable and always do it?
Add __link_set based code to automatically convert the linux module parameters
into sysctls.
use ${HOST_SH}
this module needs MKLDSCRIPT too now