I'm not sure of the worthiness of this idea, so please consider it an RFC.
Its key merits are:

* Reuse existing infrastructure
* Greatly tightens up the parsing of nomca
* Greatly simplifies the parsing of machvec

Addition cleanup (moving setup_mvec() to machvec.c) by Ken Chen.
Signed-Off-By: NHorms <horms@verge.net.au>
Signed-Off-By: NTony Luck <tony.luck@intel.com>