Revert "Support for loading board- and platform-specific configuration."

This reverts commit 50c2dbc793261531882f664939b78c98dd83d3d8.

Don't use boardname for configuration search.

Conflicts:
	ohmd/ohm-module.c
[packaging] Remove boardname requirement.
Merge pull request #5 from jusa/remove-boardname

Remove boardname support