[sr-dev] couple of xavp questions

[jh at tutpro.com]

wiki devel doc says about avp value:

Generic data value
It allows to store any type of data built in shared memory.

but current modules that use xavp don't seem to do so.

perhaps the wiki text is not up to date.  it also uses api function
xavp_add, which does not exist.

and even if the doc would be correct, it does not make sense to require
that user of the api needs to deal with shared mem allocation.
xapv_add_value should hide such details.

-- juha