* stk500v2.c (stk500v2_open): use same condition to refer to the AVR
Doper support as used in the definition in ser_avrdoper.c.
(Thanks to Christian Starkjohann for the analysis of the problem.)
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@947 81a1dc3b-b13d-400b-aceb-764788c761c2