fixes section mismatch warning during compile
$ make CONFIG_DEBUG_SECTION_MISMATCH=y -j3
[...]
MODPOST 16 modules
WARNING: ddbridge/octonet.o(.data+0x0): Section mismatch in reference from the variable octonet_driver to the function
.init.text:octonet_probe()
The variable octonet_driver references
the function __init octonet_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
