* main.c: after locating the part information, determine default
memtype for all update options that didn't have a memtype
specified; this is "application" for Xmega parts, and "flash" for
everything else.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@1086 81a1dc3b-b13d-400b-aceb-764788c761c2