This brings this documentation into line with other values like attr
where you can specify the type of the variable.
The type output is added to each entry where appropriate, one minor
change is that we need to be less strict on the type lookup for
the hint suffix on sub-entries for types like "bool"
The documentation/test-case is updated.
Change-Id: Icc01ec6f04af97beeb085f6dbcf37b0d9dbed1fd
6a0034ebca