parseAttributeInfo: Support inverted EC features
parseAttributeInfo: Support inverted EC features

There are several EC feature attributes where matching the chip
specification actually indicates the _absence_ of a feature.

So far we had to either match on every other chip, adding new chips
as projects are added, or define the attribute as a negative attribute
and invert its value in procedure code (sometimes without indicating
in the attribute name that it's a negative attribute). Both approaches
are prone to causing mistakes down the road.

To fix this, introduce a new <falseIfMatch/> tag that indicates that
an EC feature is absent if the chip spec is matched, so the procedure
code will not have to remember to invert the attribute value.

Change-Id: I33dcf127b8f81729c9638d6648faf2c5adbcb470
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/42607
Tested-by: PPE CI <dc75934ba5befb9221434e67a247b93aec46b36b@us.ibm.com>
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Reviewed-by: Santosh S. Puranik <b20e66e0dba857f8b73ba981bbfb98d7adb86dcf@in.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Richard J. Knight <94c04f3910596886be97211d492ad29f0ba29cd5@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <ab93eca12e43608f33daa16a67357cd7b7e867ab@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot